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Synthesis of 3-stannyl and 3-silyl propargyl phosphanes and the formation of a phosphinoallene

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Version 2 2023-06-12, 06:36
Version 1 2023-06-08, 23:02
journal contribution
posted on 2023-06-12, 06:36 authored by Amy J Saunders, Ian CrossleyIan Crossley
The group 14 chloropropargyls R3ECCCH2Cl (R3E = Bu3Sn, Ph3Sn, Me2PhSi, iPr3Si, nPr3Si, nBu3Si), obtained by a modified literature procedure, react with LiPPh2 to afford the novel propargyl phosphanes Ph2PCH2CCER3 in high yield, as viscous oils; (Me3Si)2PCH2CCSiPhMe2 is similarly obtained from LiP(SiMe3)2. In contrast, the reaction of PhCCCH2MgCl with ClP(NEt2)2 fails to produce a comparable propargyl phosphane, but generates preferentially (>70%) the novel phosphinoallene (Et2N)2PC(Ph)=C=CH2, which is characterised spectroscopically, and through its reaction with HCl. The coordination chemistry of representative phosphanes is explored with respect to platinum and palladium for the first time.

Funding

Crossley - Conjugate phosphapolyynyls: en route to functional phosphaorganometallic polymers; G0200; LEVERHULME TRUST; F/00 230/AL

Polyphosphametallacarbons: Toward phosphrus-doped organometallic molecular wires; G1182; Royal Society

History

Publication status

  • Published

File Version

  • Published version

Journal

Dalton Transactions

ISSN

1477-9226

Publisher

Royal Society of Chemistry

Volume

45

Page range

2148-2155

Department affiliated with

  • Chemistry Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-11-04

First Open Access (FOA) Date

2016-02-10

First Compliant Deposit (FCD) Date

2015-11-04

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