Protolysis of five-membered metallacyclocumulene complexes of zirconocene and hafnoceneстатьяИсследовательская статьяКраткое сообщение
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
Аннотация:The reactions of the five-membered metallacyclocumulene complexes Cp2M[h4-ButC4But] (M = Zr, Hf) with an equimolar amount of HCl in dioxane at 20 °C result in linear complexes Cp2M(Cl)–C(But)=CH–CºCBut, whereas the reaction with an excess of HCl affords Cp2MCl2 and trans-ButCH=CH–CºCBut. The reaction of the latter hydrocarbon with an equivalent amount of the bis(trimethylsilyl)acetylene complex of zirconocene Cp2Zr(Me3SiC2SiMe3)(Py) leads to bis(trimethylsilyl)acetylene and a five-membered zirconacycloallene complex. This complex can also be obtained in ‘one-pot’ via the reactions of five-membered zirconacyclocumulene with two equivalents of HCl and subsequent treatment with magnesium in THF.