Diverse reactivity of an electrophilic phosphasilene towards anionic nucleophiles: Substitution or metal-amino exchange
Yükleniyor...
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
WILEY-V C H Verlag Gmbh
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The reaction of MesLi (Mes=2,4,6-trimethylphenyl) with the electrophilic phosphasilene R-2(NMe2)Si-RSi=PNMe2 (2, R=Tip=2,4,6-triisopropylphenyl) cleanly affords R-2(NMe2)Si-RSi=PMes and thus provides the first example of a substitution reaction at an unperturbed Si=P bond. In toluene, the reaction of 2 with lithium disilenide, R2Si=Si(R)Li (1), apparently proceeds via an initial nucleophilic substitution step as well (as suggested by DFT calculations), but affords a saturated bicyclo[1.1.0]butane analogue as the final product, which was further characterized as its Fe(CO)(4) complex. In contrast, in 1,2-dimethoxyethane the reaction of 1 with 2 results in an unprecedented metal-amino exchange reaction.
Açıklama
Anahtar Kelimeler
Bicyclic Compounds, Electrophiles, Phosphasilenes, Phosphorus, Silicon
Kaynak
Angewandte Chemie-International Edition
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
55
Sayı
36
