Intramolekulare diels-alder-reaktion bei allencarbonsäure-arylestern
作者:Gerhard Himbert、Dieter Fink
DOI:10.1016/s0040-4039(00)98735-5
日期:1985.1
By thermolysis aryl allenecarboxylates 6 and 7 undergo the intramolecular Diels-Alder reaction whereby the aromatic nucleus functions as diene. The lactones 8 and 9 are formed.
作者:Himbert, Gerhard、Fink, Dieter、Diehl, Klaus、Rademacher, Paul、Bittner, Andreas J.
DOI:——
日期:——
N-Heterocyclic Carbene-Catalyzed Ireland–Coates Claisen Rearrangement: Synthesis of Functionalized β-Lactones
作者:Lisa Candish、David W. Lupton
DOI:10.1021/ja310449k
日期:2013.1.9
The N-heterocyclic carbene (NHC)-catalyzed Claisen rearrangement of hybrid Ireland-Coates structures has been achieved, allowing the stereoselective synthesis of highly functionalized beta-lactones. The reaction proceeds with high diastereoselectivity (>20:1) and affords a diverse range of beta-lactone fused cyclopentanes. Mechanistic studies are detailed.
HIMBERT, GERHARD;FINK, DIETER;DIEHL, KLAUS;RADEMACHER, PAUL;BITTNER, ANDR+, CHEM. BER., 122,(1989) N, C. 1161-1173