Affiliation:
1. Anorganisch-Chemisches Institut der Universität Münster, Corrensstraße 36, D-4400 Münster/Westf.
Abstract
Abstract
The heterocycles 3 to 6 are formed in a one-pot procedure by reacting trifluoromethyl phosphorus diiodide F3CPI2 with tin dichloride SnCl2 in the presence of the corresponding 1,3-dienes. The reactions proceed via [2+4] cycloaddition of the diphosphene intermediate F3CP = PCF3 (1) as suggested by the high yields obtained (50 to 100%) and the formation of the cyclic tetraphosphane (F3CP)4 (2) as the only by-product. Cycloreversion occurs at moderate temperatures as demonstrated by the reaction of 6 with 2,3-dimethylbutadiene to give 3 and cyclohexadiene. The products have been characterized by NMR and mass spectra
Cited by
10 articles.
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