In connection with our work directed towards the synthesis of ... We envisaged forming the 2-oxindole ring by the cyclisation ... Published on 01 January 1986. Downloaded by google on 22/02/2016 19:45:36. ... View Article Online / Journal Homepage / Table of Contents for this issue ... 1: Treatment of the N-unsubstituted acryloylanilides (3) with tri-n- butylstannane under the usual conditions gave no cyclisation pro- ducts. ... (3) a 73 b 84 C 89 d 90 e 95 f g