Evidence for cyclopropene formation in the reactions of 4,4-dimethyl-4-silacyclohexadienylidene
                                
                                    
                                        作者:Brian Coleman、Maitland Jones                                    
                                    
                                        DOI:10.1016/s0022-328x(00)83220-9
                                    
                                    
                                        日期:1979.3
                                    
                                    In the reactions of 4,4-dimethylcyclohexadienylidene no evidence for cyclopropene formation has been found. By contrast, 4,4-dimethyl-4-silacyclohexadienylidene yields a product on reaction with butadiene that is best rationalized by intramolecular cyclopropene formation.
                                    在4,4-二
甲基环己二烯基的反应中,没有发现形成环
丙烯的证据。相反,在与
丁二烯反应时,通过分子内环
丙烯的形成最好地合理化4,4-二甲基-4-
硅环环
己二烯基的产物。