A regioselective formal [4 + 2] cycloaddition for the assembly of highly functionalized benzene rings was successfully developed. In this reaction, olefinic C–H bond functionalization/cyclization cascadereaction followed by rearomatization led to the desired molecules in one step under mild reaction conditions. This protocol also displays a broad substrate scope and good tolerance to a wide range
Addition en 1,8 d'organocuprates lithiens saturés sur la cétone CH3 (CHCH)3COCH3 et sur l'ester CH3(CHCH)3COOC2H5
作者:F. Barbot、A. Kadib-Elban、Ph. Miginiac
DOI:10.1016/0022-328x(88)80253-5
日期:1988.5
The reaction of saturated lithium organocuprates with the trienic ketone CH3(CHCH)3COCH3 and with the trienic ester CH3 (CHCH)3COOC2H5 proceeds by a 1,8 conjugate addition to give a β,δ-diethylenic carboynl compound.
Kroener,M., Chemische Berichte, 1967, vol. 100, p. 3172 - 3182
作者:Kroener,M.
DOI:——
日期:——
Timed Diels-Alder reactions
作者:George A. Kraus、Michael J. Taschner
DOI:10.1021/ja00526a036
日期:1980.3
In this paper a unique approach to the synthesis of polycyclic ring systems is disclosed. The approach features an intermolecular Diels-Alderreaction followed by an intramolecular Diels-Alderreaction where the regiochemistry of addition is controlled by substituents on the bisdiene and bisdienophile. This methodology has been applied to the synthesis of the fluorenone ring system. An efficient convergent