Photochemistry of 3-Substituted Bicyclo[3.1.0]hex-3-en-2-ones. Regioselective Synthesis of <i>O</i><i>rtho</i>-Substituted Phenols by Pauson−Khand Reaction
作者:Iolanda Marchueta、Santiago Olivella、Lluís Solà、Albert Moyano、Miquel A. Pericàs、Antoni Riera
DOI:10.1021/ol016506j
日期:2001.10.1
[reaction: see text] 3-Substituted bicyclo[3.1.0]hex-3-en-2-ones 3, easily obtained by Pauson-Khand reaction between terminal alkynes and cyclopropene, have been quantitatively converted into ortho-substituted phenols 4 by irradiation with UV light (350 nm). The kinetics and mechanism of this photochemical process have been studied by means of FT-IR and semiempirical (AM1 3x3 CI) calculations.