Rearrangement of bis(alkylidynyl)phosphines to phosphaacyls
Date
2017
Authors
Colebatch, Annie
Han, Yong-Shen
Hill, Anthony
Sharma, Manab
Shang, Rong
Ward, James
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Royal Society of Chemistry
Abstract
A range of bis(alkylidynyl)phosphines RP{CRM(CO)2(Tp*)}2 (M =Mo, W; R = Cl, Ph, Cy; Tp* = hydrotris(dimethylpyrazolyl)borate) are obtained
from the reactions of [M(RCLi)(CO)2(Tp*)] with Cl2PR or alternatively via the palladium(0)-mediated reactions of [W(RCBr)(CO)2(Tp*)] with
RPH2 (R = Py, Cy). The complexes RP{CRW(CO)2(Tp*)}2 rearrange slowly (R = Cl) or on heating (R = Ph) to afford the isomeric phosphaacyls
[W2(l:g1-C;g2-C,P-CCPR)(CO)4(Tp*)2].
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Chemical Communications
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