CONTRIBUTION TO THE CHEMISTRY OF BORON .225. REACTIONS OF MONOMERIC PHOSPHANYLBORANES WITH ACYL CHLORIDES - XA-3-OXONIA-5-PHOSPHA-2-BORATA-3,5-CYCLOHEXADIENES

Authors
NOTH H STAUDE S THOMANN M KRONER J PAINE RT
Citation
H. Noth et al., CONTRIBUTION TO THE CHEMISTRY OF BORON .225. REACTIONS OF MONOMERIC PHOSPHANYLBORANES WITH ACYL CHLORIDES - XA-3-OXONIA-5-PHOSPHA-2-BORATA-3,5-CYCLOHEXADIENES, Chemische Berichte, 127(10), 1994, pp. 1923-1926
Citations number
15
Categorie Soggetti
Chemistry
Journal title
Chemische Berichte → ACNP
ISSN journal
00092940
Volume
127
Issue
10
Year of publication
1994
Pages
1923 - 1926
Database
ISI
SICI code
0009-2940(1994)127:10<1923:CTTCOB>2.0.ZU;2-J
Abstract
Monomeric ethylsilyl)phosphanyl]-9-borabicyclo-[3.3.1]nonane (1) react s with acyl chlorides 2 in a 1:2 ratio to afford deep red derivatives of six-membered oxonia-sigma2,lambda3-phosphaboratacyclohexadienes 3. In contrast, the (ditert-butylboryloxy)phosphaethene 5 is obtained fro m tBu2BP-(SiMe3)2 (4) and PhC(O)Cl. It is assumed that both reactions proceed via a common intermediate, an (acylphosphanyl)borane 6. The co lor of compounds 3, which feature a flat boat conformation, is due to a pi - pi transition.