Cyclization of 4‐Hydroxy‐3‐hydroxyalkylcarbostyrils Under Mitsunobu Conditions
摘要:
Reaction of 4-hydroxy-3-hydroxyalkyl-1-methyl-2(1H)quinolinones with Ph3P/DEAD gives either C- or O-cyclized products depending on chain length. Hydroxyethyl produces only spiro cyclopropylquinolinone 6, whereas hydroxypropyl affords only pyranoquinolinone 8. Hydroxybutyl gives a 2:1 mixture of spiro cyclopentylquinolinone 11 and oxepinoquinolinone 10.
COPPOLA, C. M., J. HETEROCYCL. CHEM., 1984, 21, N 3, 769-771
作者:COPPOLA, C. M.
DOI:——
日期:——
Coppola, Gary M., Journal of Heterocyclic Chemistry, 1984, vol. 21, p. 769 - 772
作者:Coppola, Gary M.
DOI:——
日期:——
Cyclization of 4‐Hydroxy‐3‐hydroxyalkylcarbostyrils Under Mitsunobu Conditions
作者:Gary M. Coppola
DOI:10.1081/scc-200030595
日期:2004.1.1
Reaction of 4-hydroxy-3-hydroxyalkyl-1-methyl-2(1H)quinolinones with Ph3P/DEAD gives either C- or O-cyclized products depending on chain length. Hydroxyethyl produces only spiro cyclopropylquinolinone 6, whereas hydroxypropyl affords only pyranoquinolinone 8. Hydroxybutyl gives a 2:1 mixture of spiro cyclopentylquinolinone 11 and oxepinoquinolinone 10.