Cycloexpansion Reactions in Benzo[<i>e</i>]-1,3,2-diheterophosphorin-4-ones and 4-Oxo-1,3,2-dioxaphospholanes
作者:V. F. Mironov、L. M. Burnaeva、G. A. Ivkova、L. M. Abdrakhmanova、M. N. Dimukhametov、I. V. Konovalova
DOI:10.1080/10426507.2010.517695
日期:2011.3.31
The peculiarities of the reactions of 2-R-benzo[d]-1,3,2-dioxaphosphorin-4-ones, 2-R-naphtho[d]-1,3,2-dioxaphosphorin-4-ones, 2-R-8-azabenzo[e]-1,3,2-dioxaphosphorin-4-ones, and 2-R-1,3,2-dioxaphospholan-4-ones with unsaturated compounds are summarized in the review. The reactions proceed in the mild conditions and lead to the formation of the seven-and six-membered heterocycles 1,3,2-dioxa-, 1,3,2-oxaza-, 1,4,2-dioxa-, and 1,4,2-oxazaphosphepines and 1,3,2- and 1,4,2-dioxaphosphorinanes with a high regio- and stereoselectivity. The hydrolysis and thermolysis of the some benzophosphepine derivatives leads to the substituted fluorinated ketones and various nonphosphorus heterocycles.