Reactions of trimethylsilyl azide with aldehydes: facile and convenient syntheses of diazides, tetrazoles, and nitriles
作者:Kozaburo Nishiyama、Makoto Oba、Akio Watanabe
DOI:10.1016/s0040-4020(01)90003-1
日期:——
The reactions of trimethylsilylazide (TMSA) with various aldehydes were found to be versatile procedures for the synthesis of gem- and 1,3-diazides, tetrazoles, and nitriles, whose formation was varied by controlling the quantities of TMSA, catalyst, and the reaction conditions.
A Convenient One-Step Method of Converting Electron-Rich Aromatic Aldehydes into Nitriles
作者:Hitomi Suzuki、Chie Nakaya
DOI:10.1055/s-1992-26185
日期:——
Electron-rich aromatic aldehydes react with sodium azide in the presence of aluminum chloride in boiling tetrahydrofuran to give the corresponding nitriles in good yields, while electron-deficient or hindered aromatic aldehydes lead to (diazidomethyl)arenes in moderate yield under similar conditions.
Kinetic resolution by copper-catalyzed azide–alkyne cycloaddition
作者:Jun-cai Meng、Valery V. Fokin、M.G. Finn
DOI:10.1016/j.tetlet.2005.05.019
日期:2005.7
The use of chiral pybox ligands imparts enantioselectivity to the Cu-I-catalyzed azide-alkyne cycloaddition reaction, in the form of kinetic resolution of alpha-chiral azides and desymmetrization of gem-diazides. While levels of selectivity are modest, the results show unequivocally that the process benefits from ligand-accelerated catalysis. (c) 2005 Elsevier Ltd. All rights reserved.
NISHIYAMA KOZABURO; OBA MAKOTO; WATANABE AKIO, TETRAHEDRON, 43,(1987) N 4, 693-700
作者:NISHIYAMA KOZABURO、 OBA MAKOTO、 WATANABE AKIO
DOI:——
日期:——
Trapping of Azidocarbenium Ion: A Unique Route for Azide Synthesis
作者:Suman Pramanik、Prasanta Ghorai
DOI:10.1021/ol5008235
日期:2014.4.18
the first time, a sensitive azidocarbenium ionintermediate has been trapped with various nucleophiles to provide azides in excellent chemoselectivity. This provides a novel approach for the chemoselective synthesis of primary and secondary benzyl azides from aldehydes in a one-pot reaction. Enantioselective nucleophilic addition to the azidocarbenium ion has also been initiated.