Preparation and reactions of bulky ethynylphosphines

Full text of DOI:10.1080/10426500213334

Phosphorus, Sulfur, and Silicon and the Related Elements
ISSN: 1042-6507 (Print) 1563-5325 (Online) Journal homepage: http://www.tandfonline.com/loi/gpss20
Preparation and Reactions of Bulky
Ethynylphosphines
Katsunori Nishide , Shigekazu Ito & Masaakia Yoshifuji
To cite this article: Katsunori Nishide , Shigekazu Ito & Masaakia Yoshifuji (2002) Preparation
and Reactions of Bulky Ethynylphosphines, Phosphorus, Sulfur, and Silicon and the Related
Elements, 177:8-9, 2011-2012, DOI: 10.1080/10426500213334
To link to this article: http://dx.doi.org/10.1080/10426500213334
Published online: 27 Oct 2010.
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Date: 31 May 2016, At: 15:40

Phosphorus, Sulfur and Silicon, 2002, Vol. 177:2011–2012
C
Copyright 2002 Taylor & Francis
1042-6507/02 $12.00 + .00
DOI: 10.1080/10426500290094035
PREPARATION AND REACTIONS OF BULKY
ETHYNYLPHOSPHINES
Katsunori Nishide, Shigekazu Ito, and Masaaki Yoshifuji
Tohoku University, Japan
(Received July 29, 2001; accepted December 25, 2001)
Ethynylphosphine system is expected to show the interaction between
the lonepair of phosphorus and -orbital of C C group, and some spec-
troscopic and theoretical investigations have been performed so far.1
Although some ethynylphosphines have been derived, their instability
limits the synthetic and structural study.2 We report the preparation
and some reactions of ethynylphosphines possessing the bulky 2,4,6-
tri-t-butylphenyl (Mes*) group. Ethynylbenzene 1 was lithiated and
allowed to react with chlorobis(dimethylamino)phosphine to afford 2,
and 2 was chlorinated with HCl to afford 3 as a thermally stable solid.
Dichlorophosphine 3 was allowed to react with LiAlH4 to give the cor-
responding primary phosphine 4 as a thermally-stable compound and
the product was characterized by spectroscopic study. The Tungsten
complex 5 derived from 4 reacted with Mes*PCl2 to afford a tungsten
complex of diphosphene 6.
SCHEME 1
Address correspondence to Masaaki Yoshifuji, Department of Chemistry, Graduate
School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan.
E-mail: yoshifj@mail.cc.tohoku.ac.jp
2011

2012
K. Nishide et al.
REFERENCES
[1] D. E. Cabelli, A. H. Cowley, and M. J. S. Dewar, J. Am. Chem. Soc., 103, 3290 (1981).
[2] J.-C. Guillemin, P. Savignac, and J.-M. Denis, Inorg. Chem., 30, 2170 (1991).