Synthesis and properties of 2,4-dialkoxy-1,3-di-t-butylcyclodiphosph(III)-azanes

Keat, R., Rycroft, D. S. and Thompson, D. G. (1979) Synthesis and properties of 2,4-dialkoxy-1,3-di-t-butylcyclodiphosph(III)-azanes. Journal of the Chemical Society: Dalton Transactions, 1979(7), pp. 1224-1230. (doi: 10.1039/DT9790001224)

Abstract

A series of alkoxycyclodiphosph(III)azanes, XP(NBu^t)₂PY [X = Y = OMe (two isomers); X = Y = OEt (two isomers); X = Y = OCH₂CF₃ (one isomer); X = Y = OBu^t (one isomer); X = Cl, Y = OMe (one isomer)] has been prepared from the reactions of CIP(NBu^t)₂PCl with alcohols in the presence of triethylamine. The product of reaction with Bu^tOH is easily converted into (Bu^tO)P(NBu^t)₂P(O)H. Analogous reactions with ethane-1,2- and propane-1,3-diols give the cage compounds P(NBu^t)₂[O(CH₂)_nO]P (n= 2 or 3) and polymeric materials. Geometrical isomers of (MeO)P(NBu^t)₂P(OMe) showed a different degree of reactivity towards methyl iodide, elemental sulphur, or selenium. Isomeric forms of the sulphides and selenides, (MeO)P(NBu^t)₂P(X)(OMe) (X = S or Se), (MeO)(X)P(NBu^t)₂P(X)(OMe) (X = S or Se), and of methyl iodide adducts have been obtained. Aspects of the ¹H, ¹³C, and ³¹P n.m.r. and i.r. spectra of cyclodiphosph(III)azanes are discussed.

• Item Type: Articles
• Keywords: Phosphorus chemistry, NMR spectroscopy.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Rycroft, Dr David
• Authors: Keat, R., Rycroft, D. S., and Thompson, D. G.
• Subjects: Q Science > QD Chemistry
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Journal of the Chemical Society: Dalton Transactions
• Publisher: The Chemical Society
• ISSN: 0300-9246