The reaction of 2-[(trimethylsilyl)methyl]-2 H -tetrazoles with various alkyl halides and carbonates using n -butyllithium or lithium diisopropylamide (LDA) gave 2-[1-(trimethylsilyl)alkyl]-2 H -tetrazoles and (2 H -tetrazol-2-yl)acetates as useful synthons of modified tetrazoles.
C–H/N–H cross-coupling has become a key technology for the selective conjugation of azole drugmolecules. However, the development of new synthetic models and green chemical methods is imperative to enhance the construction of multi-functional compounds and compounds with unique functional groups. We herein reported an electrochemical synthesis of α-tetrazolyl ketones with excellent yields and broad
5-phenyl-2H-tetrazol-2-ylmethyl ketones in the synthesis of tetrazolylalkanols and tetrazolyl(hydroxy)alkylphosphonates
作者:A. S. Krylov、A. V. Dogadina、R. E. Trifonov
DOI:10.1134/s1070428014060219
日期:2014.6
ne and 1-phenyl-2-(5-phenyl-2H-tetrazol-2-yl)ethanone with sodium tetrahydridoborate gave 1-(5-phenyl-2H-tetrazol-2-yl)propan-1-ol and 1-phenyl-2-(5-phenyl-2H-tetrazol-2-yl)ethanol, respectively. Only 1-(5-phenyl-2H-tetrazol-2-yl)propan-2-one was reduced with baker’s yeast with an appreciable yield. 1-(5-Phenyl-2H-tetrazol-2-yl)propan-2-one and 1-phenyl-2-(5-phenyl-2H-tetrazol-2-yl)ethanone reacted
accessible and green O2 as the oxygen source has been developed. The transformation possesses the advantages of operational simplicity, a broad substrate scope, high atom economy, and mild reaction conditions. The mechanistic studies reveal that an energy transfer process probably occurs in the initial stage, and the reaction proceeds via β-scission of the alkoxylradical species.