pyridinium p-toluenesulfonate in dichloromethane T=20°C;
参考文献
Mesaros, Clementina; Gugiu, Bogdan G.; Zhou, Rong; Lee, Seon Hwa; Choi, Jaewoo; Laird, James; Blair, Ian A.; Salomon, Robert G.
Chemical Research in Toxicology, 2010 , vol. 23, # 3 p. 516 - 527
Baldwin, Jack E.; Claridge, Tim D. W.; Culshaw, Andrew J.; Heupel, Florian A.; Smrckova, Svatava; Whitehead, Roger C.
Tetrahedron Letters, 1996 , vol. 37, # 38 p. 6919 - 6922