Linear Conjugated Systems Bearing Aromatic Terminal Groups. III. The Synthesis and the Electronic Spectra of 1,1′-Dinaphthyl- and 2,2′-Dinaphthylpoly-ynes
Linear Conjugated Systems Bearing Aromatic Terminal Groups. III. The Synthesis and the Electronic Spectra of 1,1′-Dinaphthyl- and 2,2′-Dinaphthylpoly-ynes
Lewis and Brønsted Acid Cocatalyzed Reductive Deoxyallenylation of Propargylic Alcohols with 2-Nitrobenzenesulfonylhydrazide
作者:Zhaohong Liu、Peiqiu Liao、Xihe Bi
DOI:10.1002/chem.201404692
日期:2014.12.22
Reductivedeoxyallenylation of sterically hindered tertiary propargylicalcohols was realized on reaction with 2‐nitrobenzenesulfonylhydrazide (NBSH) by the combined use of Lewis and Brønstedacid catalysts. This method features a broad substrate scope, mild reaction conditions, and good functional‐group tolerance, and affords various mono‐, di‐, and trisubstituted allenes in good‐to‐excellent yields