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Reactions of α,β‐Enones with Diazo Compounds, 2 . Synthesis of Dihydrofuran Derivatives
Author(s) -
Anac Olcay,
Daut Ayse
Publication year - 1997
Publication title -
liebigs annalen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0947-3440
DOI - 10.1002/jlac.199719970630
Subject(s) - chemistry , diazo , catalysis , copper , organic chemistry
Several α,β‐unsaturated ketones were treated with dimethyl diazomalonate and ethyl acetodiazoacetate under bis(acetyl‐acetonato)copper(II) catalysis. Dihydrofuran derivatives, obviously arising from carbonyl ylides, were isolated in high yields. Structural identifications were carried out using 2D‐NMR‐spectroscopic data.