Facile decomposition of 9-substituted 9-xanthydrols in basic media. Dependence of reaction behavior on structure and metal ion
作者:Rafik Karaman、Ibraheem T. Badejo、James L. Fry
DOI:10.1021/ja00198a082
日期:1989.8
have Rsub 3}COH yields} Rsub 2}C double bond} O + RH (1) decompositions of alcohols by free-radical pathways. Theoretical and experimental studies of the mechanisms of alkoxide decompositions have considered both heterolytic and homolytic pathways. Here they report the observation of unusual facile fragmentation of the alkoxides of several 9-substituted-9-xanthydrols in THF or Csub 6}Dsub 6} by
Syntheses of 9-cyclohepta-2,4,6-trien-1-yl-9H-xanthen-9-ol and related alcohols by a novel umpolung method
作者:Ibraheem T. Badejo、Rafik Karaman、Nga Wing Irene Lee、Eric C. Lutz、Maria T. Mamanta、James L. Fry
DOI:10.1039/c39890000566
日期:——
Several 9-alkyl derivatives of xanthen-9-ol have been synthesized by a novelumpolungmethod involving reactions of the dianion of xanthen-9-one with alkyl halides.