METHOD OF PREPARING TAXANE DERIVATIVES AND INTERMEDIATES USED THEREIN
申请人:Kim Nam Du
公开号:US20100317868A1
公开(公告)日:2010-12-16
The present invention relates to a novel method of preparing a taxane derivative having an anti-tumor and anti-leukemia activity, and intermediates used therein.
PRODUCTION PROCESS FOR FLUOROSULFONYLIMIDE AMMONIUM SALT
申请人:Tsubokura Shiro
公开号:US20130331609A1
公开(公告)日:2013-12-12
A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH
4
F (HF)
p
. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.
作者:Andrew S. Paton、Graham E. Morse、David Castelino、Timothy P. Bender
DOI:10.1021/jo202365x
日期:2012.3.2
The synthesis and study of a series of pseudohalides of boron subphthalocyanine (BsubPc) are reported. Each pseudohalide has been compared to the more common chloride and bromide of BsubPc, and we have found that most react slower under standard phenoxylation and hydrolysis conditions. Three pseudohalides (TsO-BsubPc, MsO-BsubPc, and BsO-BsubPc) do not hydrolyze at all even after prolonged periods
Trichlorophenol (TCP) sulfonate esters: A selective alternative to pentafluorophenol (PFP) esters and sulfonyl chlorides for the preparation of sulfonamides
作者:Jonathan D. Wilden、Lynsey Geldeard、Chieh C. Lee、Duncan B. Judd、Stephen Caddick
DOI:10.1039/b614604j
日期:——
2,4,6-Trichlorophenol (TCP) sulfonate esters undergo effective aminolysis under conventional heating and microwave irradiation; the reactivity of these species is such that chemoselective transformations of PFP sulfonate esters can be achieved.
2- and 3-Aminomethyl-6-arylcarbonyl-2,3-dihydropyrrolo[1,2,3-de]-1,4-benzoxazines , useful as analgesic agents, are prepared either by reaction of a 2- or 3-aminomethyl-2,3-dihydropyrrolo[1,2,3-de]-1,4-benzoxazine with an arylcarboxylic acid halide in the presence of a Lewis acid or by reaction of a 2- or 3-aminomethyl-4-amino-3,4-dihydro-2H-1,4-benzoxazine with a 1-lower-alkyl-3-aryl-1,3-diketone or with a .beta.-aryl-.beta.-ketopropionaldehyde under dehydrating conditions and heating the resulting hydrazone in an acid medium.