Alder et al., Justus Liebigs Annalen der Chemie, 1954, vol. 586, p. 110,125
作者:Alder et al.
DOI:——
日期:——
Transition metal promoted reactions. 38. NiCl2(dppe)-catalyzed geminal dialkylation of dithioacetals and trimethylation of ortho thioesters
作者:Yih Ling Tzeng、Ping Fan Yang、Nai Wen Mei、Tien Min Yuan、Chun Chi Yu、Tien Yau Luh
DOI:10.1021/jo00018a016
日期:1991.8
NiCl2(dppe)-catalyzed cross-coupling of cinnamaldehyde dithioacetals gave the corresponding geminal dimethylation products in excellent yields. Allylic ortho thioesters afforded regioselectively the corresponding trimethylation products. The reaction may occur via an 18-electron pi-allyl intermediate, which undergoes facile reductive elimination to afford the geminal dimethylation product. Benzylic dithioacetals having an ortho amino group gave 2-isopropylanilines exclusively. The reaction of benzylic dithioacetals with EtMgBr under the same conditions yielded geminal diethylation products.
Transition metal promoted reaction. 26. Nickel catalyzed geminal dimethylation of allylic dithioacetals
作者:Ping Fan Yang、Zhi Jie Ni、Tien Yau Luh
DOI:10.1021/jo00271a001
日期:1989.5
Lukin, K. A.; Zefirov, N. S., Journal of Organic Chemistry USSR (English Translation), 1989, vol. 25, # 1.1, p. 82 - 86
作者:Lukin, K. A.、Zefirov, N. S.
DOI:——
日期:——
LUKIN, K. A.;ZEFIROV, N. S., ZH. ORGAN. XIMII, 25,(1989) N, S. 92-96