![]() Additionally, we report a novel method for generating a phosphinidenoid species via fluoride-induced trimethylsilyl fluoride elimination, leading to an improved preparative procedure for 1 (182 mg, 33% isolated yield). The platinum complex (Ph 3P) 2Pt(C 2H 4) also reacts with 1 to form an orange η 2 complex of tri- tert-butylphosphacyclobutadiene in 80% isolated yield. Trapping of a generated intermediate was achieved by repeating the experiment in the presence of excess styrene (20 equiv) or ethylene (1 atm), and the corresponding cycloadducts of tri- tert-butylphosphacyclobutadiene were isolated in 88% and 74% yields, respectively. When it is combined with a substoichiometric amount of triphenylborane, compound 1 forms a ladderane-type dimer of tri- tert-butylphosphacyclobutadiene in 72% isolated yield. ![]() ![]() Tri- tert-butylphosphatetrahedrane ( 1) is shown here to act as a synthon of isomeric tri- tert-butylphosphacyclobutadiene in the presence of a Lewis acid or transition-metal complex. TeamSpeak enables people to speak with one another over the Internet. ![]()
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