7453-13-6Relevant academic research and scientific papers
1,2-Ferrocenediylazaphosphinines 2: A new class of nucleophilic catalysts for ring-opening of epoxides
Paek, Seung Hwan,Shim, Sang Chul,Cho, Chan Sik,Kim, Tae-Jeong
, p. 849 - 851 (2007/10/03)
1,2-Ferrocenediylazaphosphinines (1a-c) have been successfully employed as a new class of nucleophilic catalysts for ring-opening of a range of epoxides, their catalytic efficiency in terms of regioselectivity as well as chemical yield comparing well with the existing catalysts in the literature. In contrast, low enantiomeric excesses have been obtained from the reactions of meso-epoxides catalyzed by (R)-1.
Dynamic kinetic resolution of epichlorohydrin via enantioselective catalytic ring opening with TMSN3. Practical synthesis of aryl oxazolidinone antibacterial agents
Schaus, Scott E.,Jacobsen, Eric N.
, p. 7937 - 7940 (2007/10/03)
The dynamic kinetic resolution of racemic epichlorohydrin has been achieved via enantioselective asymmetric ring opening with TMSN3 catalyzed by the (salen)Cr(III)N3 complex 1. The resulting 3-azido-1-chloro-2-trimethylsiloxypropane product was obtained in high enantiomeric purity and incorporated into the synthesis of U-100592, a representative from a class of highly-promising aryl oxazolidinone antibacterial agents.
SODIUM BROMIDE CATALYSED REGIOSELECTIVE CLEAVAGE OF OXIRANES WITH CHLOROTRIMETHYLSILANE
Iqbal, Javed,Khan, M. Amin,Ahmad, Saeed
, p. 641 - 644 (2007/10/02)
Sodium bromide efficiently catalyses the regioselective cleavage of oxiranes with chlorotrimethylsilane to the corresponding O-silyiated chlorohydrins in excellent yield.
Cobalt(II) Chloride Catalysed Regioselective Cleavage of Oxiranes with Chlorotrimethylsilane
Iqbal, Javed,Khan, Mohd. Amin
, p. 1157 - 1158 (2007/10/02)
Oxiranes can be cleaved regioselectively with chlorotrimethylsilane in presence of cobalt(II) chloride to the corresponding O-silylated vicinal chlorohydrins in excellent yields.
Preparation of 3-Azetidinols with Non-Bulky 1-Alkyl Substituents
Higgins, Robert H.,Eaton, Quentin L.,Worth, Leroy,Peterson, Myra V.
, p. 255 - 259 (2007/10/02)
Cyclization of either the tetrahydropyranyl or trimethylsilyl ether of 1-(alkylamino)-3-chloro-2-propanols 1 followed by cleavage of the azetidinyl ether provides a general method for the preparation of 1-alkyl-3-azetidinols.Unhindered amines provide a more facile preparation of derivatives of 1, or its ethers, than do hindered amines, while hindered derivatives of 1 undergo more facile ring closure.
Regioselective Addition of Organic Chlorides to Epoxides in the Presence of Quaternary Ammonium Chloride
Gu, Xue-Ping,Ikeda, Isao,Okahara, Mitsuo
, p. 397 - 398 (2007/10/02)
By a reaction of epoxides with organic chlorides in the presence of dodecyltrimethylammonium chloride as a catalyst, a series of 2-substituted 1-(chloromethyl)ethyl ethers were synthesized regioselectively in high yields under mild conditions.
