Synthesis of E-3-Hydroxymethyl-1-methoxy-4-(1′-pentenyl)benzene
摘要:
The title compound with exclusively the E-geometry has been synthesized by two independent routes. When this compound was reacted with cerium(IV) ammonium nitrate, it was found that oxidative cyclisation to the corresponding 4-hydroxybenzopyrans did not occur. This further defines the structural parameters required for such oxidative cyclisations.
作者:Richard Baltzly、Walter S. Ide、Arthur P. Phillips
DOI:10.1021/ja01614a049
日期:1955.5
Comparisons of O-acylation and Friedel–Crafts acylation of phenols and acyl chlorides and Fries rearrangement of phenyl esters in trifluoromethanesulfonic acid: effective synthesis of optically active homotyrosines
Reactions involving phenol derivatives and acyl chlorides have to be controlled for competitive O-acylations and C-acylations (Friedel–Crafts acylations and Fries rearrangements) in acidic condition. The extent for these reactions in trifluoromethanesulfonic acid (TfOH), which is used as catalyst and solvent, is examined. Although diluted TfOH was needed for effective O-acylation, concentrated TfOH
Synthesis of E-3-Hydroxymethyl-1-methoxy-4-(1′-pentenyl)benzene
作者:Robin G.F. Giles、Ivan R. Green、J. Alexandre X. Pestana
DOI:10.1080/00397919508011471
日期:1995.12
The title compound with exclusively the E-geometry has been synthesized by two independent routes. When this compound was reacted with cerium(IV) ammonium nitrate, it was found that oxidative cyclisation to the corresponding 4-hydroxybenzopyrans did not occur. This further defines the structural parameters required for such oxidative cyclisations.