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1. 发明授权

US07527652B2 Dithiol compositions and methods of treating animal hides using the same 失效
标题翻译：二硫醇组合物及使用其处理动物皮的方法
公开(公告)号：US07527652B2
公开(公告)日：2009-05-05
申请号：US10571772
申请日：2004-09-10
申请人： Holger Buehler , Joaquim Henrique Teles , Gunther Pabst , Tilman Luedecke Taeger
发明人： Holger Buehler , Joaquim Henrique Teles , Gunther Pabst , Tilman Luedecke Taeger
IPC分类号： C14C1/00 , C07D301/12 , C07C323/02 , C07F11/00
CPC分类号： C07D407/04 , C07C323/12
摘要： Mixtures of (A) from 55 to 65 mol % of erythro-dithiol of formula erythro-IV: and (B) from 35 to 45 mol % of threo-dithiol of formula threo-IV or threo-IV′: and their corresponding alkali metal salts and ammonium salts, are useful for treating animal hides.
摘要翻译：（A）55至65摩尔％的赤藓-4-肟的赤式二硫醇和（B）35至45摩尔％的式Ⅳ-Ⅳ或钍-IV'的二硫代硫醇的混合物及其相应的碱金属盐和铵盐可用于治疗动物皮肤。

2. 发明申请

US20070143930A1 METHOD FOR REMOVING HORN SUBSTANCES FROM ANIMAL SKIN 审中-公开
标题翻译：从动物皮肤中去除牛皮质的方法
公开(公告)号：US20070143930A1
公开(公告)日：2007-06-28
申请号：US11682924
申请日：2007-03-07
申请人： Hans-Georg LEMAIRE , Tilman Taeger , Gunther Pabst , Philippe Lamalle , Michael Breuer , Burkhard Kroger , Thomas Subkowski
发明人： Hans-Georg LEMAIRE , Tilman Taeger , Gunther Pabst , Philippe Lamalle , Michael Breuer , Burkhard Kroger , Thomas Subkowski
IPC分类号： C14C1/06
CPC分类号： C14C1/065
摘要： Horny substances are removed from animal hides by a process wherein animal hides are treated in a liquor comprising from 0.05 to 5% by weight, based on the salted weight, of one or more compounds of the formula I or the corresponding alkali metal or alkaline earth metal or ammonium or phosphonium salts thereof, the variables being defined as follows: R1 is selected from hydrogen and C1-C12-alkyl, unsubstituted or substituted by one or more S—H or O—H groups; X1 to X4 are identical or different and are selected from hydrogen, C1-C4-alkyl, O—H, S—H and N—HR2, R2 is hydrogen or C1-C12-alkyl or a C1-C4-alkyl-C═O group, at least one of the radicals X1 to X4 being S—H, and, if R1 contains neither O—H nor S—H, at least one further radical from among X1 to X4 is selected from S—H, OH and NH—R2, and furthermore with at least one compound which catalyzes the hydrolysis of peptide bonds.
摘要翻译：通过一种方法将动物皮肤从动物皮革中去除，其中动物皮由含有0.05至5重量％（以盐重计）的一种或多种式I化合物或相应的碱金属或碱土金属金属或铵或鏻盐，变量定义如下：R 1选自氢和C 1 -C 12 - 烷基未取代或被一个或多个SH或OH基取代; X 1至X 4相同或不同，并且选自氢，C 1 -C 4 - C 4 - 烷基，OH，SH和N-HR 2，R 2是氢或C 1 -C 12 - C 12 - 烷基或C 1 -C 4 - 烷基-CO基团，基团X 1至X 4中的至少一个， SUP>为SH，并且如果R 1不包含OH或SH，则X 1至X 4中的至少一个其它基团为选自SH，OH和NH-R 2，以及至少一种催化肽键水解的化合物。

3. 发明申请

US20070124868A1 Method for the extraction of keratin from dead animal skins 审中-公开
标题翻译：从死亡动物皮肤中提取角蛋白的方法
公开(公告)号：US20070124868A1
公开(公告)日：2007-06-07
申请号：US10579714
申请日：2004-11-12
申请人： Holger Buehler , Joaquim Teles , Carsten Suling , Tilman Taeger , Gunther Pabst
发明人： Holger Buehler , Joaquim Teles , Carsten Suling , Tilman Taeger , Gunther Pabst
IPC分类号： C07F9/22 , C07F9/28
CPC分类号： C14C1/06 , C07C323/12 , C07C323/15 , C07C323/16 , C07C323/17 , C07C2601/08 , C07C2601/14 , C14C1/065
摘要： horny substances are removed from hides of dead animals by a process wherein the hides of dead animals are treated with at least one substance of the formula I or at least one corresponding alkali metal, alkaline earth metal, ammonium or phosphonium salt, where R1 and R4 are identical or different and are selected from hydrogen, C6-C14-aryl and C1-C12-alkyl, unsubstituted or substituted by one or more SH or OH groups, R2 and R3 are identical or different and are selected from hydrogen, C6-C14-aryl and C1-C12-alkyl, unsubstituted or substituted by one or more SH or OH groups, at least one radical R2 or R3 not being hydrogen or R1 and R4 not being hydrogen, and it being possible in each case for two vicinal radicals R1 to R4 together to be C3-C10-alkylene, R5 is selected from hydrogen, C1-C12-alkyl, H—C═O or C1-C4-alkyl-C═O, X1, X2, X3 and X4 are selected from OH, SH and NHR5, where, if R1 to R4 contain at least one sulfur atom, at least one radical X1 to X4 is SH, and, if R1 to R4 contain no sulfur atom, at least two radicals X1 to X4 are SH.
摘要翻译：角质物质通过其中用至少一种式I物质或至少一种相应的碱金属，碱土金属，铵或鏻盐处理死亡动物的皮肤的方法从死亡动物的皮革中除去，其中R ^{1和R 4相同或不同，并且选自氢，C 6 -C 14 - 芳基和C 6 - 未取代或被一个或多个SH或OH基团取代的C 1 -C 12 - C 12 - 烷基，R 2和R 3 >相同或不同，并且选自氢，C 6 -C 14 - 芳基和C 1 -C 12 - 未被取代或被一个或多个SH或OH基取代的亚烷基，至少一个R 2或R 3不是氢或R 1， / SUP>和R 4不是氢，并且在每种情况下可以将两个邻位基团R 1至R 4一起成为 C 3 -C 10 - 亚烷基，R 5 s选自氢，C 1 -C 12 - 烷基，HCO或C 1 -C 4 - 烷基 -CO，X 1，X 2，X 3和X 4选自OH，SH和NHR 其中，如果R 1至R 4含有至少一个硫原子，则至少一个基团X 1或O 2 >至X 4是SH，并且如果R 1至R 4不含硫原子，则至少两个基团X 1 至X 4是SH。}

4. 发明申请

US20060037148A1 Method for removing horn substances from animal skin 失效
标题翻译：从动物皮肤去除角质物质的方法
公开(公告)号：US20060037148A1
公开(公告)日：2006-02-23
申请号：US10531167
申请日：2003-10-14
申请人： Hans-George Lemaire , Tilman Taeger , Gunther Pabst , Philippe Lamalle , Michael Breuer , Burkhard Kroger , Thomas Subkowski
发明人： Hans-George Lemaire , Tilman Taeger , Gunther Pabst , Philippe Lamalle , Michael Breuer , Burkhard Kroger , Thomas Subkowski
IPC分类号： C14C1/00
CPC分类号： C14C1/065
摘要： The invention relates to a method for removing horn substances from animal skin. Said method is characterised in that animal skins are treated in an aqueous bath containing between 0.05 and 5 wt. %—in relation to the weight of the salt—of at least one compound of general formula I or the corresponding alkali metallic salts or alkaline-earth metallic salts thereof or ammonium or phosphonium salts, the variables having the following definitions: R1 is selected from hydrogen or C1-C12 alkyl, unsubstituted or substituted by at least one S—H group or one O—H group; X1 to X4 are the same or different and selected from hydrogen, C1-C4 alkyl, O—H, S—H or N—HR2; and R2 represents hydrogen or C1-C12 alkyl or a C1-C4-alkyl-C═O group, at least one X1 to X4 representing S—H. If R1 contains neither O—H nor S—H, at least one other X1 to X4 is selected from S—H, OH or NH—R2. Said aqueous bath also comprises at least one compound which catalyses the hydrolysis of peptide compounds.
摘要翻译：本发明涉及从动物皮肤去除角质物质的方法。所述方法的特征在于动物皮肤在含有0.05至5wt。％ - 与至少一种通式I化合物或其相应的碱金属盐或碱土金属盐或铵盐或鏻盐的盐的重量相关，所述变量具有以下定义：R 1选自氢或C1-C12烷基，未被取代或被至少一个SH基团或一个OH基团取代; X 1〜X 4相同或不同，选自氢，C 1 -C 4烷基，O-H，S-H或N-HR 2; 并且R 2表示氢或C 1 -C 12烷基或C 1 -C 4烷基-C 0基团，至少一个表示S-H的X 1至X 4。如果R 1既不含O-H也不包含S-H，则至少一个其它的X 1至X 4选自S-H，OH或NH-R 2。所述水浴还包含至少一种催化肽化合物水解的化合物。

5. 发明申请

US20050210596A1 Use of polyelectrolytes in the production of leather 审中-公开
标题翻译：在生产皮革时使用聚电解质
公开(公告)号：US20050210596A1
公开(公告)日：2005-09-29
申请号：US10505448
申请日：2003-03-12
申请人： Stephan Huffer , Gunther Pabst , Tilman Taeger , Stefan Schroeder , Philippe Lamalle
发明人： Stephan Huffer , Gunther Pabst , Tilman Taeger , Stefan Schroeder , Philippe Lamalle
IPC分类号： C14C1/06 , C14C1/08 , C14C3/22 , C14C1/00
CPC分类号： C14C1/06 , C14C1/08
摘要： A process for the production of semifinished products and intermediates in the production of leather using one or more organic polyelectrolytes comprises at least one of the following steps: (a) Addition of one or more polyelectrolytes and from 0 to 0.7% by weight, based on the salted weight, of lime immediately before or during liming, (b) addition of one or more polyelectrolytes before or during deliming, (c) addition of one or more polyelectrolytes before or during bating, (d) addition of one or more polyelectrolytes and a total of from 0 to 3% by weight, based on the pelt weight, of alkali metal or alkaline earth metal salt immediately before or in the pickle.
摘要翻译：使用一种或多种有机聚电解质在生产皮革中生产半成品和中间体的方法包括以下步骤中的至少一个步骤：（a）加入一种或多种聚电解质和0至0.7重量％，基于（b）在剥离之前或期间添加一种或多种聚电解质，（c）在或之前加入一种或多种聚电解质，（d）加入一种或多种聚电解质和基于皮毛重量的0-3重量％的碱金属或碱土金属盐在紧挨之前或之中。

6. 发明授权

US06784296B2 Preparation of terpyridines 失效
标题翻译：制备三联吡啶
公开(公告)号：US06784296B2
公开(公告)日：2004-08-31
申请号：US10134626
申请日：2002-04-30
申请人： Ralph Lunkwitz , Gunther Pabst , Günter Scherr
发明人： Ralph Lunkwitz , Gunther Pabst , Günter Scherr
IPC分类号： C07D40102
CPC分类号： C07D213/61
摘要： The present invention provides a process for preparing a terpyridine compound of the formula I by obtaining a C1-C4-alkyl pyridine-2-carboxylate derivative by acid hydrolysis of a 2-cyanopyridine derivative by means of an anhydrous inorganic acid or its anhydride in the presence of water and a C1-C4-alkanol, with an equimolar amount of water being added to the 2-cyanopyridine derivative prior to addition of the anhydrous inorganic acid or its anhydride, subsequently condensing the resultant C1-C4-alkyl pyridine-2-carboxylate derivative with acetone in an aprotic solvent in the presence of a base, then reacting the obtained 1,5-bis(2-pyridyl)pentane-1,3,5-trione derivative with ammonia or ammonium salts (NH4)qY with removal of the water of reaction formed by employing a C1-C4-alkanol as an entrainer, and finally chlorinating the resultant 2,6-bis(2-pyridyl)-4(1H)pyridinone derivative in the presence of phosphorus oxide chloride.
摘要翻译：本发明提供了通过在存在下通过无水无机酸或其酸酐水解2-氰基吡啶衍生物的方法获得C1-C4烷基吡啶-2-羧酸酯衍生物来制备式I的三联吡啶化合物的方法，的水和C1-C4链烷醇，在加入无水无机酸或其酸酐之前，将等摩尔量的水加入到2-氰基吡啶衍生物中，随后将所得的C1-C4烷基吡啶-2-羧酸酯衍生物与丙酮在非质子溶剂中在碱存在下反应，然后将所得的1,5-双（2-吡啶基）戊烷-1,3,5-三酮衍生物与氨或铵盐（NH 4）qY反应，除去通过使用C1-C4链烷醇作为夹带剂形成的反应水，最后在磷酰氯的存在下氯化所得的2,6-双（2-吡啶基）-4（1H）吡啶酮衍生物。

7. 发明申请

US20070101509A1 Method for the production of leather and semifinished products, and formulations that are suitable therefor 审中-公开
标题翻译：用于生产皮革和半成品的方法，以及适用于其的制剂
公开(公告)号：US20070101509A1
公开(公告)日：2007-05-10
申请号：US10572547
申请日：2004-09-17
申请人： Stephan Huffer , Tilman Taeger , Volker Bach , Matthias Kluglein , Gunther Pabst , Oliver Reese
发明人： Stephan Huffer , Tilman Taeger , Volker Bach , Matthias Kluglein , Gunther Pabst , Oliver Reese
IPC分类号： C14C1/00
CPC分类号： C14C3/16 , C14C3/22
摘要： Semifinished products or leather are or is produced by a process in which pelts, pickled pelts or semifinished products are treated with a) at least one sheet silicate and b) at least one copolymer which is obtainable by copolymerization of at least one ethylenically unsaturated dicarboxylic anhydride (A), derived from at least one dicarboxylic acid of 4 to 8 carbon atoms, at least one vinylaromatic compound (B1) or at least one oligomer (B2) of branched or straight-chain C2-C10-alkene, at least one oligomer having an average molecular weight Mn of from 300 to 5 000 g/mol or being obtainable by oligomerization of at least 3 equivalents of C2-C10-alkene, and optionally at least one ethylenically unsaturated monomer (C) differing from (A) and having at least one hetero atom, and reaction with at least one compound (D) of the formula I a or I b and optionally hydrolysis with water or aqueous alkaline solution, where, in formula I a and I b, A1 are identical or different and are C2-C6-alkylene R1 is linear or branched C1-C20-alkyl and n is an integer from 1 to 200.
摘要翻译：半成品或皮革是通过以下工艺生产的：其中用a）至少一种片状硅酸盐处理毛皮，腌制的毛皮或半成品，和b）至少一种共聚物，其可通过至少一种烯键式不饱和二羧酸酐（A），衍生自至少一个4至8个碳原子的二羧酸，至少一种乙烯基芳族化合物（B1）或至少一种支链或直链C 2 - C 10 - 亚烷基，至少一种平均分子量为N 3〜5 000g / mol的低聚物或可通过将至少3当量的 C 2 -C 10 - 烯烃，以及任选至少一种不同于（A）并且具有至少一个杂原子的烯属不饱和单体（C），并且与至少一种式I a或I b的化合物（D），并且任选地用水或碱性水溶液水解，其中在式I中a a d I b，A 1相同或不同，为C 2 -C 6 - 亚烷基，R 1为直链或支链C 1 -C 20 - 烷基，n为1至200的整数。

8. 发明申请

US20050125906A1 Tanning agent and curing agent based on dialdehydes 失效
标题翻译：鞣剂和基于二醛的固化剂
公开(公告)号：US20050125906A1
公开(公告)日：2005-06-16
申请号：US10511279
申请日：2003-05-02
申请人： Stephan Hüffer , Gunther Pabst , Tilman Taeger , Stefan Schroeder , Gerhard Wolf
发明人： Stephan Hüffer , Gunther Pabst , Tilman Taeger , Stefan Schroeder , Gerhard Wolf
IPC分类号： C07C45/72 , C14C3/16 , C14C3/00
CPC分类号： C07C45/72 , C14C3/16
摘要： The invention relates to a tanning agent that is produced by reacting at least one aldehyde of general formula (I) with at least another identical or different aldehyde of formula (I), wherein the variables are defined as follows: Z is a single chemical bond, an optionally substituted C1-C12-alkyl, an optionally substituted C5-C12-cycloalkyl or an optionally substituted C6-C14-aryl, wherein the reaction is carried out in the presence of an acid catalyst and optionally in the presence of at least another carbonyl compound of formula (II), R1 to R4 represent, independent of one another, hydrogen, optionally substituted C1-C12-allyl, optionally substituted C3-C12-cycloalkyl, optionally substituted C7-C13-aralkyl or optionally substituted C6-C14-aryl, provided that at least another aldehyde of formula (I) in which the radical of Z contains α hydrogen atoms or at least another carbonyl compound of formula (I) is present when Z is a single chemical bond or a radical without any hydrogen atoms. The invention also relates to a method for the production of said tanning agent, to the utilization thereof as curing agent, particularly for pretannage, tannage or retannage of animal skins using the inventive tanning agents. The invention further relates to a powder active agent containing one or more of said inventive tanning agents, to a method for the production of said powder active agents and to the use thereof as curing agent and to leather produced using the inventive tanning agents or the inventive method.
摘要翻译：本发明涉及通过使至少一种通式（I）的醛与至少另一相同或不同的式（I）的醛反应制备的鞣制剂，其中变量定义如下：Z是单一化学键，任选取代的C 1 -C 12 - 烷基，任选取代的C 5 -C 12 - 环烷基或任选取代的C 6 -C 14 - 芳基，其中反应在酸催化剂的存在下进行，并且任选地在至少另外一种羰基化合物存在下进行式（II）中，R 1至R 4彼此独立地表示氢，任选取代的C 1 -C 4烷基， 12-烯丙基，任选取代的C 3 -C 12 - 环烷基，任选取代的C 7 -C 13 - 或其任选取代的C 6 -C 14 - 芳基，条件是至少另一种式（I）的醛，其中th 当Z是单个化学键或没有任何氢原子的基团时，Z的基团含有α氢原子或至少另外一个式（I）的羰基化合物。本发明还涉及一种用于生产所述鞣剂的方法，其用作固化剂，特别是使用本发明的鞣剂对动物皮肤进行预处理，鞣制或回火处理。本发明还涉及含有一种或多种所述本发明的鞣剂的粉末活性剂，用于制备所述粉末活性剂的方法及其作为固化剂的用途，以及使用本发明的鞣剂或本发明制备的皮革方法。

9. 发明申请

US20050043479A1 Preparation of polysiloxane-containing compositions and their use for imparting water repellency to or refatting materials having a fibrous structure 审中-公开
标题翻译：制备含聚硅氧烷的组合物及其对具有纤维结构的材料赋予拒水性或改性材料的用途
公开(公告)号：US20050043479A1
公开(公告)日：2005-02-24
申请号：US10909286
申请日：2004-08-03
申请人： Rainer Erhardt , Gunter Scherr , Gunther Pabst , Ralph Lunkwitz
发明人： Rainer Erhardt , Gunter Scherr , Gunther Pabst , Ralph Lunkwitz
IPC分类号： C08L83/08 , C09D183/08 , C14C11/00 , D06M15/643
CPC分类号： C14C11/003 , C08L83/08 , C09D183/08 , D06M15/643 , D06M2200/12
摘要： Compositions comprising the following components: (A) at least one carboxyl-containing polysiloxane which has at least one structural element of the formula Ia, Ib or Ic per molecule, (B1) at least one aprotic substance which is liquid at room temperature or (B2) at least one organic solvent, (C) up to 2% by weight, based on the weight of the composition, of water, the variables being defined as follows: R1 is hydrogen, hydroxyl, C1-C6-alkyl, C6-C14-aryl or C1-C4-alkoxy, R2 is hydrogen or C1-C6-alkyl, Z1 is C2-C25-alkylene, C3-C10-cycloalkylene, C6-C14-arylene, —[(CH2)n—NR2—(CH2)m]p, n and m are integers which are identical or different and are from 1 to 10, p is an integer from 1 to 5, A1 is C2-C20-alkylene, unsubstituted or substituted by R3 and/or R4, —CH═CR3—, R3 and R4 are identical or different and are selected from hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C6-C14-aryl and C1-C4-alkoxy; it being possible for R3 and R4 to be linked to one another with formation of a mono- or bicyclic system, M are identical or different and are selected from hydrogen, alkali metal and ammonium, which may be substituted or cyclic, are prepared by a process wherein at least one amino-containing polysiloxane which has at least one structural element of the formula IIa, IIb or IIc per molecule is reacted, in the presence or absence of component (B1), with at least one dicarboxylic anhydride of the formula IIIa or at least one dicarboxylic acid derivative of the formula IIIb X being a leaving group and Z2 being C2-C25-alkylene, C3-C10-cycloalkylene, C6-C14-arylene or —[(CH2)n—NR2—(CH2)m]p, and then, if required, component (B1) or (B2) is added.
摘要翻译：包含以下组分的组合物：（A）至少一种含有羧基的聚硅氧烷，其每分子具有至少一个式Ia，Ib或Ic的结构元件，（B1）至少一种在室温下为液体的非质子性物质（或 B2）至少一种有机溶剂，（C）至多2重量％，基于组合物的重量，水，变量定义如下：R 1是氢，羟基，C 1 -C 6 - 烷基，C 6 -C 14 - 芳基或C 1 -C 4 - 烷氧基，R 2是氢或C 1 -C 6烷基，Z 1是C 2 -C 25 - 亚烷基，C 3 -C 10 - 亚环烷基，C 6 -C 14 - 亚芳基 - [（CH 2）n -NR 2 - （CH 2）m] p，n和m是相同或不同且为1至10的整数，p为1至5的整数，A 1为C 2 未取代或被R 3和/或R 4取代的-C 20 - 亚烷基，-CH = CR 3 - ，R 3和R 4相同或不同，并且选自氢，C1 C 20 - 烷基，C 2 -C 20 - 烯基，C 6 -C 14 - 芳基和C 1 -C 4 - 烷氧基; R 3和R 4可以彼此连接形成单环或双环体系，M相同或不同，并且可以选自氢，碱金属和铵，其可被取代或通过一种方法制备，其中至少一种含有至少一种分子式IIa，IIb或IIc结构元件的含氨基聚硅氧烷在组分（B1）存在或不存在下与至少一种二羧酸酐或式IIIb的至少一种二羧酸衍生物，其为离去基团，Z 2为C 2 -C 25 - 亚烷基，C 3 -C 10 - 亚环烷基，C 6 -C 14 - 亚芳基或 - [（CH 2））n-NR <

10. 发明授权

US07404826B2 Method for removing horn substance from skins, pelts or furs 失效
标题翻译：从皮肤，皮毛或毛皮去除角质物质的方法
公开(公告)号：US07404826B2
公开(公告)日：2008-07-29
申请号：US10513800
申请日：2003-05-19
申请人： Tilman Luedecke Taeger , Gunther Pabst , Philippe Lamalle , Stephan Hueffer , Stefan Schroeder
发明人： Tilman Luedecke Taeger , Gunther Pabst , Philippe Lamalle , Stephan Hueffer , Stefan Schroeder
IPC分类号： C14C1/00
CPC分类号： C14C1/06
摘要： Horny substances are removed from hides, pelts or skins of dead animals by treating the hides, pelts or skins in aqueous liquor with one or more compounds of the formula I or their corresponding alkali metal or alkaline earth metal salts or ammonium or phosphonium salts, the variables being defined as follows: R1 is selected from hydrogen and C1-C12-alkyl, unsubstituted or substituted by one or more S—H or O—H groups; X1 to X4 are identical or different and are selected from hydrogen, C1-C4-alkyl, O—H, S—H and N—HR2, R2 is hydrogen or C1-C12-alkyl or a C1-C4-Alkyl-C═O group, at least one radical X1 to X4 being S—H when R1 contains at least one sulfur atom and at least two radicals X1 to X4 being S—H when R1 contains no sulfur atom.
摘要翻译：通过用一种或多种式I化合物或其相应的碱金属或碱土金属盐或铵盐或鏻盐处理含水液体中的皮革，皮毛或皮肤，从死皮的皮革，毛皮或皮肤中去除角质物质，变量定义如下：R 1选自氢和C 1 -C 12 - 烷基，未被取代或被一个或多个SH取代或OH基团; X 1至X 4相同或不同，并且选自氢，C 1 -C 4 - C 4 - 烷基，OH，SH和N-HR 2，R 2是氢或C 1 -C 12 - C 12 - 烷基或C 1 -C 4 - 烷基-CO基团，至少一个X 1至X 4 - 基团，当R 1含有至少一个硫原子时为SH，当R 1为至少两个X X 1至X 4时，SH 4为SH 不含硫原子。

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