A palladium NNC-pincer complex: an efficient catalyst for allylic arylation at parts per billion levels. 2015

Go Hamasaka, and Fumie Sakurai, and Yasuhiro Uozumi
Institute for Molecular Science, Okazaki 444-8787, Japan. uo@ims.ac.jp.

Allylic arylation of allylic acetates by sodium tetraarylborates in the presence of ppb to ppm (molar) loadings of a palladium NNC-pincer complex catalyst in methanol at 50 °C gave the corresponding arylated products in excellent yields. Total turnover numbers of up to 500,000,000 and turnover frequencies of up to 11,250,000 h(-1) were achieved.

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