Method of production and method of separation of 2,4'-dipyridyl derivatives and methods of production of benzoxazepine derivatives and salts thereof
申请人:——
公开号:US20030125547A1
公开(公告)日:2003-07-03
A method of production of 2,4′-dipyridyl derivatives by a cross coupling reaction of a 2-halopyridine derivative and a 4-halopyridine using a nickel complex catalyst and a method of separation of a 2,4′-dipyridyl derivative from a mixture of dipyridyl isomers containing a 2,2′-dipyridyl derivative, 2,4′-dipyridyl derivative, and 4,4′-dipyridyl by using a dilute aqueous copper sulfate solution to insolubilize and remove the 2,2′-dipyridyl derivative and 4,4′-dipyridyl are disclosed.
METHOD OF PRODUCTION AND METHOD OF SEPARATION OF 2,4'-DIPYRIDYL DERIVATIVES AND METHODS OF PRODUCTION OF BENZOXAZEPINE DERIVATIVES AND SALTS THEREOF
申请人:Daiichi Suntory Pharma Co., Ltd.
公开号:EP0966440B1
公开(公告)日:2005-11-09
US6096884A
申请人:——
公开号:US6096884A
公开(公告)日:2000-08-01
US6624308B2
申请人:——
公开号:US6624308B2
公开(公告)日:2003-09-23
Complexes of polyhydro-2,2′-bipyridines with molybdenum and tungsten carbonyls
作者:Stefan Bokorny、Joseph A. Connor、Harald Kaspar
DOI:10.1016/0022-328x(94)88119-7
日期:1994.5
3,6-tetrahydro)-2,2′-bipyridine, which have been characterised by (IR, NMR, and UV) spectroscopy. Tetracarbonyl-molybdenum and -tungsten complexes of these ligands exhibit a solvatochromic behaviour very similar to that of the analogous 2,2′-bipyridine complexes.