Klaveness, Jo; Rise, Frode; Undheim, Kjell, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1986, vol. 40, # 5, p. 373 - 380
作者:Klaveness, Jo、Rise, Frode、Undheim, Kjell
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.
Murphy, William S.; Wattanasin, Sompong, Journal of the Chemical Society. Perkin transactions I, 1980, p. 2678 - 2682
作者:Murphy, William S.、Wattanasin, Sompong
DOI:——
日期:——
MURPHY W. S.; WATTANSIN S., J. CHEM. SOC. PERKIN TRANS., PART 1, 1980, NO 12, 2678-2682
作者:MURPHY W. S.、 WATTANSIN S.
DOI:——
日期:——
BELLETIRE, J. L.;WALLEY, D. R.;FREMONT, S. L., TETRAHEDRON LETT., 1984, 25, N 50, 5729-5732