The electrophilic phosphinidene complex (Pr2N)-Pr-i-P=Fe(CO)(4) trapped byalkynes

Citation
Jbm. Wit et al., The electrophilic phosphinidene complex (Pr2N)-Pr-i-P=Fe(CO)(4) trapped byalkynes, TETRAHEDRON, 56(1), 2000, pp. 137-141
Citations number
38
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON
ISSN journal
00404020 → ACNP
Volume
56
Issue
1
Year of publication
2000
Pages
137 - 141
Database
ISI
SICI code
0040-4020(20000101)56:1<137:TEPC(T>2.0.ZU;2-0
Abstract
The in-situ formation at -30 degrees C of the electrophilic phosphinidene c omplex (Pr2NPFe)-Pr-i(CO)(4), resulting from reaction of dichlorophosphine (Pr2NPCl2)-Pr-i with Na2Fe(CO)(4) (Collman's reagent), was demonstrated by trapping reactions with various alkynes. The resulting phosphirenes were ob tained in good yields. The reactivity of (Pr2NPFe)-Pr-i(CO)(4) is less than that of PhPW(CO)(5), which is, however, generated at much higher temperatu res. The stabilization of (Pr2NPFe)-Pr-i(CO)(4) in the reaction medium is d iscussed. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.