Nakayama Juzo, Kuroda Koichiro, J. Amer. Chem. Soc., 115 (1993) N 11, S 4612-4617
作者:Nakayama Juzo, Kuroda Koichiro
DOI:——
日期:——
Synthesis and reactivities of a highly strained thiophene with two fused four-membered rings, 1,2,4,5-tetahydrodicyclobuta[b,d]thiophene
作者:Juzo Nakayama、Koichiro Kuroda
DOI:10.1021/ja00064a024
日期:1993.6
give 1 nearly quantitatively as a rather thermally stable, colorless, highly sublimative, nicely crystalline compound. Bromine rapidly adds to 1 to give the tetrabromide 21, revealing its olefinic character. Furthermore, 1 undergoes Diels-Alder reaction with tetracyanoethylene at room temperature to afford an adduct. The Diels-Alder reaction with maleicanhydride at room temperature gives an adduct in