V. Singh et al., FUNCTIONALIZED BICYCLO[2.2.2]OCTENONES - SYNTHESIS AND CRYSTAL-STRUCTURE OF '-TRICYCLO[5.2.2.0(2,6)]UNDECA-3'-10'-DIEN]-9'-ONE, Journal of chemical research. Synopses, (2), 1995, pp. 45-45
A facile synthesis of the title compound by pi4s + pi2s cycloaddition
of in situ-generated 1-oxaspiro[4,5]deca-7,9-dien-6-one 2 and cyclopen
tadiene is reported: the structure and stereochemistry of the adduct h
as been determined by single-crystal X-ray analysis. X-ray analysis.