-
公开(公告)号:US06051714A
公开(公告)日:2000-04-18
申请号:US267004
申请日:1999-03-12
IPC分类号: C07D213/61 , C07D213/06
CPC分类号: C07D213/61
摘要: Described are preferred processes for dechlorinating chlorinated pyridine compounds in the presence of zinc, an alkaline reagent and a phase transfer catalyst. Particularly preferred processes provide advantageous synthetic routes to 2,3,5-trichloropyridine starting with 2,3,5,6-tetrachloropyridine.
摘要翻译: 描述了在锌,碱性试剂和相转移催化剂存在下氯化吡啶化合物脱氯的优选方法。 特别优选的方法提供从2,3,5,6-四氯吡啶开始的2,3,5-三氯吡啶的有利合成路线。
-
公开(公告)号:US07176222B2
公开(公告)日:2007-02-13
申请号:US11032227
申请日:2005-01-11
申请人: Bradley Paul Morgan , George Petros Yiannikouros , Michael P. Cruskie, Jr. , Christopher Roy Goss
发明人: Bradley Paul Morgan , George Petros Yiannikouros , Michael P. Cruskie, Jr. , Christopher Roy Goss
IPC分类号: A61K31/45 , A61K31/4439 , A61K31/17 , C07C273/18 , C07C275/28 , C07D211/98 , C07D401/12
CPC分类号: C07D401/12
摘要: The present invention provides intermediates, synthetic methods and novel urea compositions of matter.
摘要翻译: 本发明提供中间体,合成方法和新型尿素组合物。
-