Rapid Stereoselective Syntheses of Heteroarene-Fused Azacycles via Diastereoselective Conjugate Addition of Heteroaryl Substituted Lithium Amides
作者:Stephen G. Davies、Katherine E. Holder、Ai M. Fletcher、Paul M. Roberts、James E. Thomson、David Zimmer
DOI:10.3987/com-18-s(f)59
日期:——
3-Formylpyrroles from 3-Furfurylamines by Bromine Oxidation Reaction
作者:Piin-Jye Harn、Chu-Chung Lin、Hsien-Jen Wu
DOI:10.1002/jccs.201000195
日期:2010.12
Oxidation of 3‐furfurylamines 3a‐e with bromine in acetone‐water solution gave N‐substituted 3‐formylpyrroles 4a‐e in good yields. A reaction mechanism via the Clauson‐Kaas reaction followed by the cis‐trans isomerization of the 2‐ene‐1,4‐diones 13 and 14 was proposed to account for the formation of the pyrroles 4a‐e.