专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1994018146A1 PROCESS FOR THE MANUFACTURE OF 2,2,4,4-TETRAMETHYLCYCLOBUTANEDIOL 审中-公开
标题翻译：制备2,2,4,4-四氢环戊二烯的方法
公开(公告)号：WO1994018146A1
公开(公告)日：1994-08-18
申请号：PCT/US1994001067
申请日：1994-01-28
申请人： EASTMAN CHEMICAL COMPANY
发明人： EASTMAN CHEMICAL COMPANY , SUMNER, Charles, Edwan, Jr. , GUSTAFSON, Bruce, LeRoy , KNIGHT, Jennifer, Rice
IPC分类号： C07C29/145
CPC分类号： C07C29/145 , C07C35/045 , C07C45/89 , C07C49/88 , C07C2601/04
摘要： Disclosed is a novel process for the manufacture of 2,2,4,4-tetramethylcyclobutane-1,3-diol commencing with the pyrolysis of isobutyric anhydride to produce dimethylketene. Dimethylketene is absorbed into 2,2,4,4-tetramethylcyclobutane-1,3-dione which function as the process solvents for subsequent dimerization of the dimethylketene to 2,2,4,4-tetramethylcyclobutane-1,3-dione followed by the catalytic hydrogenation of the dione to the diol product.
摘要翻译：公开了一种用于制备2,2,4,4-四甲基环丁烷-1,3-二醇的新方法，其开始于异丁酸酐的热解产生二甲基烯酮。二甲基乙烯酮被吸收到2,2,4,4-四甲基环丁烷-1,3-二酮中，其作为二甲基烯酮随后二聚成2,2,4,4-四甲基环丁烷-1,3-二酮的工艺溶剂，随后是二酮催化氢化成二醇产物。

2. 发明申请

WO2012078439A1 PROCESS FOR THE ISOMERIZATION OF 2,2,4,4-TETRAALKYLCYCLOBUTANE-1,3-DIOLS 审中-公开
标题翻译： 2,2,4,4-四甲基胆甾烷-1,3-二醇的异构化方法
公开(公告)号：WO2012078439A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/062782
申请日：2011-12-01
申请人： EASTMAN CHEMICAL COMPANY
发明人： LIU, Zhufang , ENSOR, Lori, Cooke , KELLY, Kelmara, Khadene , STAVINOHA, Jerome, Leonard, Jr. , CHAMBERLIN, Kim, Steven , KELLY, Charles Everette , ASHCROFT, Carey, Dan , SUMNER, Charles, Edwan, Jr.
IPC分类号： C07C29/56 , C07C35/04
CPC分类号： C07C29/56 , C07B2200/09 , C07C2601/04 , C07C35/045
摘要： Disclosed is a process for the isomerization of 2,2,4,4-tetraalkylcyclobutane-1,3-diols, such as 2,2,4,4-tetramethylcyclobutane-1,3-diol, by contacting the diol with a supported ruthenium catalyst in the presence of hydrogen at elevated pressures and temperatures. The process is carried under conditions in which there is no net production of 2,2,4,4- tetraalkylcyclobutane-1,3-diol. The process may be carried out in the presence or absence of a solvent and in the liquid or vapor phase.
摘要翻译：公开了通过使二醇与负载的钌接触来使2,2,4,4-四烷基环丁烷-1,3-二醇例如2,2,4,4-四甲基环丁烷-1,3-二醇异构化的方法催化剂在氢气存在下在升高的压力和温度下进行。该方法在不产生2,2,4,4-四烷基环丁烷-1,3-二醇的条件下进行。该方法可以在溶剂存在或不存在下和在液相或气相中进行。

3. 发明申请

WO2016094478A1 PROCESS FOR THE PREPARATION OF CIS-2,2,4,4-TETRAMETHYLCYCLOBUTANE-1,3-DIOL 审中-公开
标题翻译：制备CIS-2,2,4,4-四甲基胆甾烷-1,3-二醇的方法
公开(公告)号：WO2016094478A1
公开(公告)日：2016-06-16
申请号：PCT/US2015/064623
申请日：2015-12-09
申请人： EASTMAN CHEMICAL COMPANY
发明人： STAVINOHA, Jerome, Leonard Jr. , ASHCROFT, Carey, Dan , KELLY, Kelmara, Khadene , HOYME, Craig, Alan
IPC分类号： C07C29/145 , C07C35/04 , C07C29/56
CPC分类号： C07C29/132 , C07B2200/09 , C07C29/145 , C07C29/56 , C07C2601/04 , C07C35/045
摘要： This invention is generally directed to a process for the preparation of cis- 2,2,4,4-tetramethylcyclobutane-1,3-diol comprising: treatment of at least one monomer selected from 2,2,4,4- tetramethylcyclobutane-1,3-dione, 3-hydroxy-2, 2,4,4- tetramethylcyclobutanone, and 2,2,4,4-tetramethylcyclobutane-1,3-diol said diol having a starting cis:trans molar ratio of 0:1 to about 2:1, or mixtures thereof by contacting said monomer(s) with hydrogen in the presence of a reaction solvent in which the resulting cis-2, 2,4,4- tetramethylcyclobutane-1,3-diol is partially soluble and further in the presence of a catalyst comprising about 0.1 to about 10 weight percent ruthenium, based on the total weight of the catalyst, deposited on a support material, under reaction conditions sufficient to produce a cis- 2,2,4,4-tetramethylcyclobutane-1,3-diol having a final cis:trans molar ratio of from 2:1 to about 25:1.
摘要翻译：本发明一般涉及一种制备顺式-2,2,4,4-四甲基环丁烷-1,3-二醇的方法，包括：处理至少一种选自2,2,4,4-四甲基环丁烷-1 ，3-二羟基-2,4,4-四甲基环丁酮和2,2,4,4-四甲基环丁烷-1,3-二醇，所述二醇的起始顺式：反式摩尔比为0:1至约2:1，或其混合物，其中所述单体与氢在反应溶剂的存在下接触，其中所得的顺式-2,4,4-四甲基环丁烷-1,3-二醇是部分可溶的，并且进一步在催化剂存在下，在足以产生顺式-2,2,4,4-四甲基环丁烷-1,2-二醇的反应条件下，基于沉积在载体材料上的催化剂的总重量计，约0.1至约10重量％的钌， 1,3-二醇的顺式：反式摩尔比为2：1至25：1。

4. 发明申请

WO2012078384A1 PROCESS FOR THE PREPARATION OF 2,2,4,4-TETRAALKYLCYCLOBUTANE-1,3-DIOLS 审中-公开
标题翻译：制备2,2,4,4-四烯丙基-1,3-丁二醇的方法
公开(公告)号：WO2012078384A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/062178
申请日：2011-11-28
申请人： EASTMAN CHEMICAL COMPANY
发明人： ZHU, Zhidong, George , TUSTIN, Gerald, Charles , HEIDT, Philip, Conrad , LIU, Zhufang
IPC分类号： C07C29/145 , C07C35/04
CPC分类号： C07C29/145 , C07B2200/09 , C07C2601/04 , C07C35/045
摘要： Disclosed is a process for the preparation of a 2,2,4,4-tetraalkylcyclobutane-1,3-diol by hydrogenation of the corresponding 2,2,4,4-tetraalkylcyclobutane-1,3-dione in the vapor phase in the presence of a supported catalyst. The process is useful for the preparation of 2,2,4,4-tetramethylcyclobutane-1,3-diol from 2,2,4,4-tetramethylcyclobutane-1,3-dione. The process can produce a 2,2,4,4-tetraalkylcyclobutane-1,3-diol product having a cis:trans isomer ratio of 1:1 or greater.
摘要翻译：公开了一种通过在气相中氢化相应的2,2,4,4-四烷基环丁烷-1,3-二酮来制备2,2,4,4-四烷基环丁烷-1,3-二醇的方法载体催化剂的存在。该方法可用于从2,2,4,4-四甲基环丁烷-1,3-二酮制备2,2,4,4-四甲基环丁烷-1,3-二醇。该方法可以制备具有1:1:1或更大的顺式：反式异构体比例的2,2,4,4-四烷基环丁烷-1,3-二醇产物。

5. 发明申请

WO00053553A1 METHOD OF PRODUCING CYCLOBUTANONE 审中-公开
标题翻译：用于生产环丁酮
公开(公告)号：WO00053553A1
公开(公告)日：2000-09-14
申请号：PCT/EP2000/001707
申请日：2000-03-01
IPC分类号： C07B61/00 , C07C29/56 , C07C45/30 , C07C49/39 , C07C45/29
CPC分类号： C07C29/56 , C07C45/30 , C07C2601/04 , C07C49/39 , C07C35/045
摘要： The invention relates to a novel method of producing cyclobutanone according to which cyclobutanol is oxidized by alkaline or earth alkaline hypochlorite in the presence of an acid.
摘要翻译：本发明涉及一种用于制备环丁酮，其中环丁醇通过在酸的存在下的碱金属或碱土金属次氯酸盐的氧化装置的新方法。

6. 发明申请

WO2016094479A1 BATCH PROCESS FOR THE PREPARATION OF CIS-2,2,4,4-TETRAMETHYLCYCLOBUTANE-1,3-DIOL 审中-公开
标题翻译：制备CIS-2,2,4,4-四甲基胆甾烷-1,3-二醇的批处理方法
公开(公告)号：WO2016094479A1
公开(公告)日：2016-06-16
申请号：PCT/US2015/064624
申请日：2015-12-09
申请人： EASTMAN CHEMICAL COMPANY
发明人： STAVINOHA, Jerome, Leonard, Jr. , ASHCROFT, Carey, Dan , HOYME, Craig, Alan , KELLY, Kelmara, Khadene
IPC分类号： C07C29/56 , C07C29/145 , C07C35/04
CPC分类号： C07C29/145 , C07B2200/09 , C07C29/56 , C07C2601/04 , C07C35/045
摘要： This invention is generally directed to a batch process for the preparation of cis-2,2,4,4-tetramethylcyclobutane-1,3-diol comprising: (A) treatment of at least one monomer selected from 2,2,4,4- tetramethylcyclobutane-1,3-dione, 3-hydroxy-2, 2,4,4- tetramethylcyclobutanone, and 2,2,4,4-tetramethylcyclobutane-1,3-diol said diol having a starting cis:trans molar ratio of 0:1 to about 2:1, or mixtures thereof by contacting said monomer(s) with hydrogen in the presence of a reaction solvent in which the resulting cis-2, 2,4,4- tetramethylcyclobutane-1,3-diol is partially soluble and further in the presence of a catalyst comprising about 0.1 to about 10 weight percent ruthenium, based on the total weight of the catalyst, deposited on a support material, under reaction conditions sufficient to produce a cis- 2,2,4,4-tetramethylcyclobutane-1,3-diol having a final cis:trans molar ratio of from 2:1 to about 25:1; (B) removal of the reaction solvent, whether by filtration, centrifugation, or other methods known to one of ordinary skill in the art; (C) dissolution of the 2,2,4,4-tetramethylcyclobutane-1,3-diol with at least one solvent; and, optionally, (D) washing the catalyst at least once, and optionally, (E) reuse of the catalyst.
摘要翻译：本发明一般涉及制备顺式-2,2,4,4-四甲基环丁烷-1,3-二醇的分批方法，其包括：（A）处理至少一种选自2,2,4,4 - 四甲基环丁烷-1,3-二酮，3-羟基-2,2,4,4-四甲基环丁酮和2,2,4,4-四甲基环丁烷-1,3-二醇，所述二醇具有起始顺式：反式摩尔比 0:1至约2:1，或其混合物通过在反应溶剂存在下使所述单体与氢接触，其中所得顺式-2,4,4-四甲基环丁烷-1,3-二醇为在足以产生顺式-2,2,4或4的反应条件下，在包含约0.1至约10重量％的催化剂的催化剂存在下，基于沉积在载体材料上的催化剂的总重量，具有最终顺式：反式摩尔比为2:1至约25:1的4-四甲基环丁烷-1,3-二醇; （B）通过过滤，离心或本领域普通技术人员已知的其它方法除去反应溶剂; （C）使用至少一种溶剂使2,2,4,4-四甲基环丁烷-1,3-二醇溶解; 和（D）将催化剂洗涤至少一次，任选地（E）催化剂的再利用。

7. 发明申请

WO2016094473A1 PROCESS FOR 2,2,4,4-TETRAMETHYLCYCLOBUTANE-1,3-DIOL CRYSTALLIZATION 审中-公开
标题翻译： 2,2,4,4-四氢喹啉-1,3-二醇结晶的方法
公开(公告)号：WO2016094473A1
公开(公告)日：2016-06-16
申请号：PCT/US2015/064616
申请日：2015-12-09
申请人： EASTMAN CHEMICAL COMPANY
发明人： HOYME, Craig, Alan , KIRK, Shane, Kipley
IPC分类号： C07C29/78 , C07C35/04
CPC分类号： C07C29/78 , C07C2601/04 , C07C35/045
摘要： A process for isolating 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) by (a) crystallizing TMCD in a crystallization zone to generate a slurry comprising TMCD solids and (b) isolating the TMCD solids in a solid liquid separation zone to generate a wet cake and a mother liquor stream.
摘要翻译：（a）在结晶区中结晶TMCD以产生包含TMCD固体的浆料和（b）在固体中分离TMCD固体的分离2,2,4,4-四甲基-1,3-环丁二醇（TMCD）的方法液分离区以产生湿滤饼和母液流。

8. 发明申请

WO1993004026A1 PROCESS FOR THE MANUFACTURE OF 2,2,4,4-TETRAMETHYLCYCLOBUTANEDIOL 审中-公开
标题翻译：制备2,2,4,4-四氢环戊二烯的方法
公开(公告)号：WO1993004026A1
公开(公告)日：1993-03-04
申请号：PCT/US1992006950
申请日：1992-08-19
申请人： EASTMAN KODAK COMPANY
发明人： EASTMAN KODAK COMPANY , SUMNER, Charles, Edwan, Jr. , GUSTAFSON, Bruce, Leroy , KNIGHT, Jennifer, Rice
IPC分类号： C07C35/04
CPC分类号： C07C45/89 , C07C35/045 , C07C45/73 , C07C49/39
摘要： Disclosed is a novel process for the manufacture of 2,2,4,4-tetramethylcyclobutanediol commencing with the pyrolysis of isobutyric anhydride to produce dimethylketene. Dimethylketene is absorbed into certain carboxylate ester solvents which function as the process solvents for subsequent dimerization of the dimethylketene to 2,2,4,4-tetramethylcyclobutanedione followed by the catalytic hydrogenation of the dione to the diol product.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式