Preparation of dithiacycloalkynes by cyclization reactions applying the cesium effect
摘要:
The strained dithiacycloalkynes 3a,b and the larger heterocyclic alkynes 3c and 4 are obtained by cesium assisted cyclization reactions of the dithiols 1a-c and 1,4-dibromo-2-butyne (2). The reactivity of 3a-c was studied in cycloaddition and complexation reactions generating the adducts 5a,b and 6 and the silver and cobalt complexes 7 and 8.
Preparation of dithiacycloalkynes by cyclization reactions applying the cesium effect
作者:Herbert Meier、Yujia Dai
DOI:10.1016/s0040-4039(00)73972-4
日期:1993.8
The strained dithiacycloalkynes 3a,b and the larger heterocyclic alkynes 3c and 4 are obtained by cesium assisted cyclization reactions of the dithiols 1a-c and 1,4-dibromo-2-butyne (2). The reactivity of 3a-c was studied in cycloaddition and complexation reactions generating the adducts 5a,b and 6 and the silver and cobalt complexes 7 and 8.
Meier, Herbert; Dai, Yujia; Schuhmacher, Hans, Chemische Berichte, 1994, vol. 127, # 10, p. 2035 - 2042