Remodeling and Enhancing Schmidt Reaction Pathways in Hexafluoroisopropanol
作者:Hashim F. Motiwala、Manwika Charaschanya、Victor W. Day、Jeffrey Aubé
DOI:10.1021/acs.joc.5b02764
日期:2016.2.19
The effect of carrying out two variations of the Schmidt reaction with ketone electrophiles in hexafluoroisopropanol (HFIP) solvent has been studied. When TMSN3 is reacted with ketones in the presence of triflic acid (TfOH) promoter, tetrazoles are obtained as the major products. This observation is in contrast to established methods, which usually lead to amides or lactams arising from formal NH insertion
Studies in Tetrazole Chemistry. I. Side Chain Acid Derivatives
作者:C. R. Jacobson、E. D. Amstutz
DOI:10.1021/jo50015a016
日期:1953.9
Diastereoselective Alkylations of Chiral Tetrazolo[1,5-<i>a</i>]azepines via Heterobenzylic Anion Intermediates
作者:Collin H. Witt、K. A. Woerpel
DOI:10.1021/acs.orglett.2c02445
日期:2022.9.23
The alkylations of chiral seven-membered rings fused to tetrazoles are highly diastereoselective. The diastereoselectivity depended on the placement and the size of the substituent on the ring and on the electrophile. Subsequent alkylations occurred with high stereoselectivity, allowing for the construction of quaternary stereocenters. Computational studies revealed that torsional effects are responsible