Reaction of 4,6-bis(tert-butyl)-2,2,2-trichlorobenzo[d]-1,3,2-dioxaphosphole with phenylacetylene. ipso-Substitution of the tert-butyl group

Citation
Vf. Mironov et al., Reaction of 4,6-bis(tert-butyl)-2,2,2-trichlorobenzo[d]-1,3,2-dioxaphosphole with phenylacetylene. ipso-Substitution of the tert-butyl group, RUSS CHEM B, 50(4), 2001, pp. 693-696
Citations number
6
Categorie Soggetti
Chemistry
Journal title
RUSSIAN CHEMICAL BULLETIN
ISSN journal
10665285 → ACNP
Volume
50
Issue
4
Year of publication
2001
Pages
693 - 696
Database
ISI
SICI code
1066-5285(200104)50:4<693:RO4>2.0.ZU;2-4
Abstract
The reaction of 4,6-bis(tert-butyl) - 2,2,2 -trichlorobenzo[d] - 1, 3.2 -di oxaphosphole with phenylacetylene follows the mechanism of ipso-substitutio n of the tert-butyl group that is in para-position relative to the endocycl ic O atom of the heterocycle, predominantly yielding 8-(tert-butyl)-2,6-dic hloro-2-oxo-4-phenylbenzo[e]-1,2-oxaphosphorinine (NMR data). The structure of its hydrolysis product, 8-(tert-butyl)-6-chloro-2-hydroxy-2-oxo-4-pheny lbenzo[e]-1,2-oxaphosphorinine, was proved by X-ray diffraction analysis.