Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/95105
Title: Synthesis and structures of new symmetrically and unsymmetrically substituted cyclodiphosphazanes
Authors: Vijjulatha, M.
Kumara Swamy, K.C.
Vittal, J.J. 
Koh, L.L. 
Keywords: Cyclodiphosphazane
Diazadiphosphetidines
X-ray structure
Issue Date: 16-Jul-1999
Source: Vijjulatha, M.,Kumara Swamy, K.C.,Vittal, J.J.,Koh, L.L. (1999-07-16). Synthesis and structures of new symmetrically and unsymmetrically substituted cyclodiphosphazanes. Polyhedron 18 (17) : 2249-2254. ScholarBank@NUS Repository.
Abstract: The reaction of λ3-diazadiphosphetidine [ClPNt-Bu]2 (1a) with phenols in the presence of triethylamine or as their sodium salts affords only cis-[(ArO)PNt-Bu]2 as isolable products; thus, several compounds where ArO=2,6-dimethylphenoxy (2), 2-naphthoxy, 4-methoxy (3), 4-methoxyphenoxy (4), 4-methylphenoxy (5), 4-t-butylphenoxy (6) and 1-anthryloxy (8) were synthesized. The reaction of 1a with 1 mol equivalent of 2,6-dimethyl phenol or 2-naphthol afforded the unsymmetrical derivatives [ClP(N-t-Bu)2P(OAr)], where ArO=2,6-dimethyl phenoxy (9) or 2-naphthoxy (10), which could be characterized by 31P NMR spectroscopy. In a rather unusual reaction, 9 reacted with excess cyclohexylamine to give the unsymmetrical hydrolyzed product [H(O)P(N-t-Bu)2(NHC6H11)] (11). A single crystal X-ray structure determination confirms the cis disposition of aryloxy groups in 2 as well as that of the phosphoryl oxygen and the cyclohexylamino group in 11. © Elsevier Science Ltd.
Source Title: Polyhedron
URI: http://scholarbank.nus.edu.sg/handle/10635/95105
ISSN: 02775387
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

26
checked on Jan 13, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.