Synthesis of azulenes by the [6 + 4] cycloadditions of 6-aminofulvenes to thiophene S,S-dioxides
作者:Stephen E. Reiter、Lee C. Dunn、K. N. Houk
DOI:10.1021/ja00454a070
日期:1977.6
........ 21 C. F u l v e n e s ................................................... 24 1. Theoretical Rationales of Periselectivity ........... 24 2. Synthesis of Arainofulvenes........................... 28 3. Reactions of A m i n o f u l v e n e s ........................... 29 II. Results and Discussion........................................ 32 A. Preparation of Thiophene Dioxides .............