A general and efficient Cu(II)‐catalyzed cross‐coupling method is reported for the preparation of acyclic tertiary amides. Generally moderate to excellent yields and functional group tolerance were obtained with secondaryacyclicamides and aryl halides as substrates in toluene.
Rearrangement of nitrones to amides using chlor0sulfonyl isocyanate
作者:Sajan P. Joseph、D.N. Dhar
DOI:10.1016/s0040-4020(01)96081-8
日期:1986.1
Reaction of chlorosulfonyl isocyanate (CSI) with nitrones a-n and a,b has been studied. α, α, N-Triaryl nitrones a-n react with CSI to form the N,N-diaryl arylamides a-n and i-n in good yields. In the case of α-H, α, N-diaryl nitrones a,b however, two compounds viz., the rearranged product a,b and the 1,4-dihydro tetrazines a,b are formed.