First Example for Competitive Formation of 1 H -Phosphirene and η ...
2
This article was downloaded by: [Pennsylvania State University] On: 24 November 2014, At: 07:11 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Phosphorus, Sulfur, and Silicon and the Related Elements Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/gpss20 First Example for Competitive Formation of 1H- Phosphirene and η 1 -1-Phosphaallene Complexes Hendrik Wilkens a & Rainer Streubel a a Institut für Anorganische und Analytische Chemie der Technischen Universität Braunschweig , Postfach 3329, D-38023 , Braunschweig , Germany Published online: 23 Oct 2006. To cite this article: Hendrik Wilkens & Rainer Streubel (1999) First Example for Competitive Formation of 1H-Phosphirene and η 1 -1-Phosphaallene Complexes, Phosphorus, Sulfur, and Silicon and the Related Elements, 147:1, 429-429, DOI: 10.1080/10426509908053694 To link to this article: http://dx.doi.org/10.1080/10426509908053694 PLEASE SCROLL DOWN FOR ARTICLE Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) contained in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of the Content. Any opinions and views expressed in this publication are the opinions and views of the authors, and are not the views of or endorsed by Taylor & Francis. The accuracy of the Content should not be relied upon and should be independently verified with primary sources of information. Taylor and Francis shall not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use of the Content. This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. Terms & Conditions of access and use can be found at http:// www.tandfonline.com/page/terms-and-conditions
Transcript of First Example for Competitive Formation of 1 H -Phosphirene and η ...
This article was downloaded by: [Pennsylvania State University]On: 24 November 2014, At: 07:11Publisher: Taylor & FrancisInforma Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House,37-41 Mortimer Street, London W1T 3JH, UK
Phosphorus, Sulfur, and Silicon and the RelatedElementsPublication details, including instructions for authors and subscription information:http://www.tandfonline.com/loi/gpss20
First Example for Competitive Formation of 1H-Phosphirene and η1-1-Phosphaallene ComplexesHendrik Wilkens a & Rainer Streubel aa Institut für Anorganische und Analytische Chemie der Technischen UniversitätBraunschweig , Postfach 3329, D-38023 , Braunschweig , GermanyPublished online: 23 Oct 2006.
To cite this article: Hendrik Wilkens & Rainer Streubel (1999) First Example for Competitive Formation of 1H-Phosphireneand η1-1-Phosphaallene Complexes, Phosphorus, Sulfur, and Silicon and the Related Elements, 147:1, 429-429, DOI:10.1080/10426509908053694
To link to this article: http://dx.doi.org/10.1080/10426509908053694
PLEASE SCROLL DOWN FOR ARTICLE
Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) containedin the publications on our platform. However, Taylor & Francis, our agents, and our licensors make norepresentations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of theContent. Any opinions and views expressed in this publication are the opinions and views of the authors, andare not the views of or endorsed by Taylor & Francis. The accuracy of the Content should not be relied upon andshould be independently verified with primary sources of information. Taylor and Francis shall not be liable forany losses, actions, claims, proceedings, demands, costs, expenses, damages, and other liabilities whatsoeveror howsoever caused arising directly or indirectly in connection with, in relation to or arising out of the use ofthe Content.
This article may be used for research, teaching, and private study purposes. Any substantial or systematicreproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in anyform to anyone is expressly forbidden. Terms & Conditions of access and use can be found at http://www.tandfonline.com/page/terms-and-conditions
Pliospliorids. Bilfiir ond Silicon. 1999. Vol. 147. pp. 4 2 9 4 2 9 Reprints available directly from the publisher Photocopying permitted by license only
0 1999 OPA (Overseas Publishers Association) N V Published by license under the
Gordon and Breach Science Publishers imprint. Printed in Malaysia
First Example for Competitive Formation of 1H-Phosphirene and q l-1-Phosphaallene
Complexes
HENDRIK WILKENS and RAINER STREUBEL*
Institut fur Anorganische und Analytische Chemie der Technischen Universitat Braunschweig, Postfach 3329, 0-38023, Braunschweig, Germany.
2H-azaphosphirene complex 11'1 serves as an efficient precursor for terminal phos- phanediyl complex 2 (R = CH(SiMe+). which was trapped with acetylene derivatives 3a-e (R,E = Me,% (3a). Ph,Si (3b). Me,% (3c). Ph,Sn (3d). 'Bu,Sn (3e)) to yield 2.3-bifunctionalized Iff-phosphirene 4 and/or qI-I-phosphaallene complexes 5.[2,31
Complexes 4a-d were formed in the case of 3a-d. whereas 9'-I-phosphaallene com- plexes 5a.b were generated only, if stannyl-substituted acteylenes 3c.d were used. In these cases, 4c.d were obtained as byproducts. If 3e was employed, having rerr-butyl
R 3 E G C O E r (3) [(OC)~WIRP=C=C(OEWIRI (Sa,b)
- PhCN + 4c,d
' L / \
Ph
groups at tin, then no ql-I-phosphaallene complexes were formed, but, instead. dk stereoi- complexes 6a.b obtained, exclusively. These complexes are related to 1H- phosphirenes 4a-d, but have zwitterionic ring systems. owing, most probably, to a strong n-donor electron interaction of the ethoxy NMR spectroscopic data of 4a-d. 5a ,b and 6a.b and single crystal X-ray structures of 4a. 4d and 6a will be pre- sented.
References [ I I R. Streubel. A. Ostrowski. S. Priemer, u. Rohde, F. Ruthe, P. G. Jones, Eur. J. Inorg.
Chem. 1998, 257. [2] R. Streubel, H. Wilkens, F. Ruthe, P.G. Jones, J. Chem. SOC. Chem. Commun.. submitted. [3] R. Streubel, H. Wilkens, unpublished.
* e.-mail: [email protected]
[ l257]/429
Dow
nloa
ded
by [
Penn
sylv
ania
Sta
te U
nive
rsity
] at
07:
11 2
4 N
ovem
ber
2014
![Ball−McCulloch−Frantz− © The McGraw−Hill Competitive ...1].pdf · ment professors, “business strategy is now the single most im-portant management issue and will remain](https://static.fdocument.org/doc/165x107/5f2d53eba8a6e10b782099f0/ballamccullochafrantza-the-mcgrawahill-competitive-1pdf-ment.jpg)
