Ap. Marchand et S. Alihodzic, OLIGOMER FORMATION VIA REACTIONS OF 3-ETHYL-1-AZABICYCLO[1.1.0]BUTANEWITH ARENESULFONYL AZIDES, Tetrahedron, 54(50), 1998, pp. 15127-15136
Electrophilic additions of arenesulfonyl azides (i.e., TsN3 and NsN(3)
) to 3-ethyl-1-azabicyclo[1.1.0]butane (1) in CDCl3 at 80 degrees C ha
s been observed to result in the formation of oligomeric products. The
mechanism of these reactions probably involves the formation of a car
bocationic intermediate, i.e., N-arenesulfonyl-3-ethyl-3-azetidinyl ca
rbocation, which subsequently can be trapped in situ either by :N-3(-)
or by 1 to afford the observed reaction products. (C) 1998 Elsevier S
cience Ltd. All rights reserved.