Biosynthesis of Defensive Allomones in Leaf Beetle Larvae: Stereochemistry of Salicylalcohol Oxidation in Phratora vitellinae and Comparison of Enzyme Substrate and Stereospecificity with Alcohol Oxidases from Several Iridoid Producing Leaf Beetles
Biosynthesis of Defensive Allomones in Leaf Beetle Larvae: Stereochemistry of Salicylalcohol Oxidation in Phratora vitellinae and Comparison of Enzyme Substrate and Stereospecificity with Alcohol Oxidases from Several Iridoid Producing Leaf Beetles
Rh(III)‐Catalyzed Aldehydic C−H Functionalization Reaction between Salicylaldehydes and Sulfoxonium Ylides
作者:Guo‐Dong Xu、Kenneth L. Huang、Zhi‐Zhen Huang
DOI:10.1002/adsc.201900276
日期:2019.7.11
A novel aldehydic C−H functionalization reactionbetween salicylaldehydes and sulfoxonium ylides has been developed under rhodium(III) catalysis, affording coupling products in moderate to good yields. A plausible mechanism involving aldehydic C(sp2)−H activation by rhodium(III) and rhodium(III) catalyzed carbene insertion is also proposed. It was also found that the aldehydic C−H functionalization