Die Gasphasen-Flussthermolyse von 1-Isobutenyl- und 2-Methylphenyl-alkinyl-ketonen. Eine Synthese von Methylenomycin B
作者:Manuel Koller、Martin Karpf、Andr� S. Dreiding
DOI:10.1002/hlca.19860690306
日期:1986.5.7
The Gas-Flow Thermolysis of 1-Isobutenyl Alkynyl and 2-Methylphenyl Alkynyl Ketones. Synthesis of Methylenomycin B
1-异丁烯基炔基和2-甲基苯基炔基酮的气流热解。甲基霉素B的合成
The flow thermolyses of 1-isobutenyl alkynyl- and 2-methylphenyl alkynyl ketones. Synthesis of methylenomycin B
作者:Manuel Roller、Martin Karpf、André S. Dreiding
DOI:10.1016/s0040-4039(00)83928-3
日期:1986.1
lead to phenols and to cyclopentenones. The results are explained by a 5-ring carbene process (the known α-alkynone cyclization) and a 6-ring as well as a 5-ring addition process. The latter two (novel) processes are thought to be intramolecular “CH to CC additions” in two directions. The 5-ring addition process was used in a short (but low yield) synthesis of methylenomycinB.