t-Alkyl chlorides are readily azidated using trimethylsilyl azide in the presence of tin tetrachloride. Tertiary azides can be transformed without isolation into the corresponding (t-alkyl)amine hydrochlorides in a one-pot procedure employing the Staudinger reaction.
KOZIARA A.; OSOWSKA-PACEWICKA K.; ZAWADZKI S.; ZWIERZAK A., SYNTHESIS,(1987) N 5, 487-489
作者:KOZIARA A.、 OSOWSKA-PACEWICKA K.、 ZAWADZKI S.、 ZWIERZAK A.
DOI:——
日期:——
Palladium-Catalyzed Arylation of Unactivated γ-Methylene C(sp<sup>3</sup>)H and δ-CH Bonds with an Oxazoline-Carboxylate Auxiliary
作者:Peng-Xiang Ling、Sheng-Long Fang、Xue-Song Yin、Kai Chen、Bo-Zheng Sun、Bing-Feng Shi
DOI:10.1002/chem.201502621
日期:2015.11.23
A palladium‐catalyzed arylation of unactivated γ‐methylene C(sp3)H and remote δ‐CHbonds by using an oxazoline‐carboxylate directinggroup has been developed. Arylation occurs with a broad substrate scope and high tolerance of functional groups (i.e., halogen, nitro, cyano, ether, trifluoromethyl, amine, and ester). The oxazoline‐type auxiliary can be removed under acidic conditions.