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1. 发明授权

US4954627A Process for desulfurization of isothioureas and isothioamides 失效
标题翻译：异硫脲和异硫脲的脱硫方法
公开(公告)号：US4954627A
公开(公告)日：1990-09-04
申请号：US277739
申请日：1988-11-30
申请人： Dennis E. Jackman , John G. Morgan
发明人： Dennis E. Jackman , John G. Morgan
IPC分类号： C07D253/075 , C07D277/68 , C07D277/74
CPC分类号： C07D253/075 , C07D277/68 , C07D277/74
摘要： The present invention is directed to a process for desulfurizing a compound selected from isothioureas and isothioamides comprising heating the compound to be desulfurized in the presence of a mercaptanol to produce the corresponding desulfurized keto compound.
摘要翻译：本发明涉及一种用于脱硫选自异硫脲和异硫代酰胺的化合物的方法，包括在硫醇存在下加热待脱硫化合物以产生相应的脱硫酮基化合物。

2. 发明授权

US06469175B1 Methods of purifying 2-methylthio-5-trifluoromethyl-1,3,4-thiadiazole 有权
标题翻译： 2-甲硫基-5-三氟甲基-1,3,4-噻二唑的纯化方法
公开(公告)号：US06469175B1
公开(公告)日：2002-10-22
申请号：US09789369
申请日：2001-02-20
申请人： Dennis E. Jackman , Joe J. Hanson
发明人： Dennis E. Jackman , Joe J. Hanson
IPC分类号： C07D28512
CPC分类号： C07D285/125
摘要： Methods of purifying 2-methylthio-5-trifluoromethyl-1,3,4-thiadiazole include the steps of providing a first 2-methylthio-5-trifluoromethyl-1,3,4-thiadiazole composition comprising 2-methylthio-5-trifluoromethyl-1,3,4-thiadiazole and organic solvent; performing a first extraction of the 2-methylthio-5-trifluoromethyl-1,3,4-thiadiazole composition with a first inorganic acid solution; and performing a second extraction of the 2-methylthio-5-trifluoromethyl-1,3,4-thiadiazole composition with a second inorganic acid solution.
摘要翻译： 2-甲硫基-5-三氟甲基-1,3,4-噻二唑的纯化方法包括提供包含2-甲硫基-5-三氟甲基-1,3,4-噻二唑组合物的第一2-甲硫基-5-三氟甲基-1,3,4-噻二唑组合物的步骤， 1,3,4-噻二唑和有机溶剂; 用第一无机酸溶液进行2-甲硫基-5-三氟甲基-1,3,4-噻二唑组合物的首次萃取; 并用第二无机酸溶液进行2-甲硫基-5-三氟甲基-1,3,4-噻二唑组合物的第二次萃取。

3. 发明授权

US06686501B2 Processes for preparing 3.3-dimethylbutyric acid 有权
标题翻译：制备3.3-二甲基丁酸的方法
公开(公告)号：US06686501B2
公开(公告)日：2004-02-03
申请号：US10068631
申请日：2002-02-05
申请人： Dennis E. Jackman
发明人： Dennis E. Jackman
IPC分类号： C07C5300
CPC分类号： C07C51/353 , C07C53/126
摘要： A process for preparing 3,3-dimethylbutyric acid includes the steps of reacting trimethylpyruvic acid with a first portion of hydrazine to obtain a ketazine, and treating the ketazine with base and a second portion of hydrazine.
摘要翻译：制备3,3-二甲基丁酸的方法包括使三甲基丙酮酸与肼的第一部分反应以获得酮连氮，并用肼和第二部分肼处理酮连氮的步骤。

4. 发明授权

US6025514A Process for preparing methyl dithiocarbazinate by reacting methyl bromide with the reaction product of carbon disulfide, hydrazine and an adjunct base 有权
标题翻译：甲基溴与二硫化碳，肼和辅助基质反应生成甲基二硫代肼基甲酸甲酯的方法
公开(公告)号：US6025514A
公开(公告)日：2000-02-15
申请号：US157483
申请日：1998-09-21
申请人： Dennis E. Jackman , David T. Erdman , Peter E. Newallis , Daniel M. Wasleski , Vijay C. Desai , Jeffrey D. Macke , Vidyanatha A. Prasad
发明人： Dennis E. Jackman , David T. Erdman , Peter E. Newallis , Daniel M. Wasleski , Vijay C. Desai , Jeffrey D. Macke , Vidyanatha A. Prasad
IPC分类号： C07C337/02 , C07C333/28
CPC分类号： C07C337/02
摘要： Disclosed herein is a process for preparing high yields of methyl dithiocarbazinate by reacting carbon disulfide, hydrazine and a base in an aqueous medium, in an effective ratio to form a dithiocarbazinate salt followed by methylating the dithiocarbazinate salt with methyl bromide.
摘要翻译：本文公开了通过使二硫代肼，肼和碱在水性介质中以有效的比例以有效的比例反应制备高产率的二硫代肼基甲酸甲酯的方法，以形成二硫代肼基甲酸盐，然后用甲基溴甲基化二硫代肼基甲酸盐。

5. 发明授权

US5408033A Process for the preparation of an epoxide from ketones using an alcohol or ether catalyst 失效
标题翻译：使用醇或醚催化剂从酮制备环氧化物的方法
公开(公告)号：US5408033A
公开(公告)日：1995-04-18
申请号：US41117
申请日：1993-04-01
申请人： Dennis E. Jackman
发明人： Dennis E. Jackman
IPC分类号： C07D301/02 , C07D303/08
CPC分类号： C07D303/08 , C07D301/02
摘要： An epoxide is produced by reacting a sulfonium salt with a ketone in the presence of a low molecular weight alcohol or ether and an alkali metal hydroxide at a temperature of from about 60.degree. to about 90.degree. C. The alkali metal hydroxide is in the solid form. The reaction is generally carried out in the presence of an organic solvent such as toluene. The preferred low molecular weight ether is diethylene glycol. Water is not added to the reaction mixture.
摘要翻译：在低分子量醇或醚和碱金属氢氧化物的存在下，在大约60℃至大约90℃的温度下，使锍盐与酮反应生成环氧化物。碱金属氢氧化物是固体形成。反应通常在有机溶剂如甲苯的存在下进行。优选的低分子量醚是二甘醇。不向反应混合物中加入水。

6. 发明授权

US4659819A Production of S-substituted isothioureas 失效
标题翻译： S-取代的异硫脲的生产
公开(公告)号：US4659819A
公开(公告)日：1987-04-21
申请号：US632132
申请日：1984-07-18
申请人： Dennis E. Jackman , Dietmar B. Westphal , Thomas Schmidt
发明人： Dennis E. Jackman , Dietmar B. Westphal , Thomas Schmidt
IPC分类号： C07B61/00 , C07C67/00 , C07C325/00 , C07C335/30 , C07D239/56 , C07D251/38 , C07D253/06 , C07D253/07 , C07D239/38
CPC分类号： C07D239/56 , C07D251/38 , C07D253/07
摘要： In the production of an S-substituted isothiourea including the function group ##STR1## in which R.sup.1 is an alkyl, alkenyl, aryl or aralkyl radical, wherein a thiourea including the functional group ##STR2## is reacted with an etherifying agent to replace H by R.sup.1, the improvement which comprises effecting the reaction in two steps, in the first step reacting the thiourea material with an etherifying agent including the radical Rin whichR is an alkyl, alkenyl aryl or aralkyl radical different from R.sup.1 thereby to produce the ether ##STR3## and in the second step reacting the ether with a compound of the formula R.sup.1 SH. The process is particularly applicable to the production of the known herbicide ##STR4## from the corresponding thiourea where in the first step methyl bromide or methyl iodide is used to form the S-methyl isothiourea which is then interchanged with ethyl mercaptan. Higher overall yields and/or economies are thereby achieved.
摘要翻译：在制备包含其中R 1为烷基，烯基，芳基或芳烷基的官能团的S-取代的异硫脲，其中将包含官能团的硫脲与醚化剂反应以用H代替H R1的改进包括在两个步骤中进行反应，在使硫脲材料与包含其中R是不同于R 1的烷基，烯基芳基或芳烷基的基团R的醚化剂反应的第一步中，并且在第二步中使醚与式R1SH的化合物反应。该方法特别适用于从相应的硫脲生产已知的除草剂，其中在第一步中使用甲基溴或甲基碘形成S-甲基异硫脲，然后与乙硫醇交换。从而实现更高的整体产量和/或经济。

7. 发明授权

US5877339A Process for preparing methyl dithiocarbazinate by reacting methyl bromide with the reaction product of carbon disulfide and hydrazine in an aqueous medium 失效
标题翻译：通过使甲基溴与二硫化碳和肼的反应产物在水性介质中反应来制备二硫代肼基甲酸甲酯的方法
公开(公告)号：US5877339A
公开(公告)日：1999-03-02
申请号：US743764
申请日：1996-11-07
申请人： Daniel M. Wasleski , Peter E. Newallis , Dennis E. Jackman , David T. Erdman , Jeffrey D. Macke , Vidyanatha A. Prasad , Vijay C. Desai
发明人： Daniel M. Wasleski , Peter E. Newallis , Dennis E. Jackman , David T. Erdman , Jeffrey D. Macke , Vidyanatha A. Prasad , Vijay C. Desai
IPC分类号： C07C337/02
CPC分类号： C07C337/02
摘要： Disclosed herein is an aqueous process for preparing high yields of methyl dithiocarbazinate by reacting carbon disulfide and hydrazine in an effective ratio, in an aqueous medium to form hydrazinium dithiocarbazinate salt followed by methylating the hydrazinium dithiocarbazinate with methyl bromide.
摘要翻译：本文公开了一种水性方法，其通过使二硫化碳和肼以有效的比例在水性介质中反应制备高产率的二硫代肼基甲酸甲酯以形成二硫代肼基肼基肼盐，然后用甲基溴甲基化二硫代肼基肼。

8. 发明授权

US4940815A Process for the production of thiocarbohydrazide 失效
标题翻译：硫代碳酰肼的生产工艺
公开(公告)号：US4940815A
公开(公告)日：1990-07-10
申请号：US324842
申请日：1989-03-17
申请人： Dennis E. Jackman , Gary W. Combs , Dietmar B. Westphal
发明人： Dennis E. Jackman , Gary W. Combs , Dietmar B. Westphal
IPC分类号： C07C337/06
CPC分类号： C07C337/06
摘要： TCH is produced in two stages. In the first stage, carbon disulfide and excess hydrazine are reacted in the presence of a mercaptan and optionally a strong base or an amine other than hydrazine. Carbon disulfide and a strong base (if none was present during the first stage) are then added to the reaction mixture which is further reacted to complete the formation of TCH.
摘要翻译： TCH分两个阶段生产。在第一阶段中，二硫化碳和过量的肼在硫醇和任选的强碱或除肼以外的胺的存在下反应。然后将二硫化碳和强碱（如果在第一阶段没有存在）加入反应混合物中，进一步反应以完成TCH的形成。

9. 发明授权

US4783531A Production of S-substituted isothioureas 失效
标题翻译： S-取代的异硫脲的生产
公开(公告)号：US4783531A
公开(公告)日：1988-11-08
申请号：US35528
申请日：1987-04-07
申请人： Dennis E. Jackman , Dietmar B. Westphal , Thomas Schmidt
发明人： Dennis E. Jackman , Dietmar B. Westphal , Thomas Schmidt
IPC分类号： C07D239/56 , C07D251/38 , C07D253/07 , C07D253/06 , C07D239/38
CPC分类号： C07D239/56 , C07D251/38 , C07D253/07
摘要： In the production of an S-substituted isothiourea including the functional group ##STR1## in which R.sup.1 is an alkyl, alkenyl, aryl or aralkyl radical, wherein a thiourea including the functional group ##STR2## is reacted with an etherifying agent to replace H by R.sup.1, the improvement which comprises effecting the reaction in two steps, in the first step reacting the thiourea material with an etherifying agent including the radical Rin whichR is an alkyl, alkenyl aryl or aralkyl radical different from R.sup.1thereby to produce the ether ##STR3## and in the second step reacting the ether with a compound of the formula R.sup.1 SH. The process is particularly applicable to the production of the known herbicide ##STR4## from the corresponding thiourea where in the first step methyl bromide or methyl iodide is used to form the S-methyl isothiourea which is then interchanged with ethyl mercaptan. Higher overall yields and/or economies are thereby achieved.
摘要翻译：在制备包含其中R 1为烷基，烯基，芳基或芳烷基的官能团“IMAGE”的S-取代的异硫脲时，其中包含官能团的硫脲与醚化剂反应以用H代替H R1的改进包括在两个步骤中进行反应，在使硫脲材料与包含其中R是不同于R 1的烷基，烯基芳基或芳烷基的基团R的醚化剂反应的第一步中，并且在第二步中使醚与式R1SH的化合物反应。该方法特别适用于从相应的硫脲生产已知的除草剂，其中在第一步中使用甲基溴或甲基碘形成S-甲基异硫脲，然后与乙硫醇交换。从而实现更高的整体产量和/或经济。

10. 发明授权

US4642385A Preparation of monochloropinacolone 失效
标题翻译：单氯倍他乐康的制备
公开(公告)号：US4642385A
公开(公告)日：1987-02-10
申请号：US799540
申请日：1985-11-19
申请人： Dennis E. Jackman
发明人： Dennis E. Jackman
IPC分类号： C07C49/16 , C07C45/00 , C07C45/63 , C07C45/71 , C07C49/255 , C07C67/00 , C07D249/08 , C07D521/00
CPC分类号： C07D231/12 , C07C45/63 , C07C45/71 , C07C49/255 , C07D233/56 , C07D249/08
摘要： In the reaction of pinacolone with chlorine in a solvent to produce monochloropinacolone, the improvement which comprises employing a solvent such as an alcohol which contains HCl at the outset of the reaction whereby the amount of by-product dichloropinacolone produced is reduced.
摘要翻译：在频哪酮与氯在溶剂中反应产生单氯一新酮，其改进包括在反应开始时使用含有HCl的溶剂如含有HCl的溶剂，由此产生的副产物二氯一可乐酮的量减少。

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