diboron trioxide; toluene-4-sulfonic acid in dichloromethane 1 h; HeatingVar. solv.: Et2O or no solvents;
参考文献
Carlson, Charles G.; Hall, Judith E.; Huang, Yan Y.; Kotila, Sirpa; Rauk, Arvi; Tavares, Donald F.
Canadian Journal of Chemistry, 1987 , vol. 65, p. 2461 - 2463