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Title: Synthesis and structure of the macrocycle [(OCH2CEt2CH2O) {P(N-t-Bu)2P}]2
Authors: Kommana, Praveen
Kumar, K V P Pavan
Swamy, K C Kumara
Issue Date: Sep-2003
Publisher: NISCAIR-CSIR, India
Abstract: The compound [(OCH2CEt2CH2O){P(N-t-Bu)2P}]2 (7) has been synthesized by the reaction of the cyclodiphosphazane [ClPN-t-Bu]2 (1) with an equimolar quantity of 2,2-diethyl-1 ,3-propanediol. An X-ray structure determination confirms that it is a l6-membered macrocycle. This mode of reaction is compared with those of 1 with various other difunctional amines/alcohols where only monomeric (in cyclodiphosphazane units) compounds are isolated. Reaction of 1 with half mole equivalents of the diols HOCH2CR2CH2OH [R = H, Me, Et] afforded products formulated as (OCH2CR2CH2O){P(N-t-Bu)2 PCl}2. Attempts to incorporate lithium ion into 7 and the related methyl compound [(OCH2CMe2CH2O){P(N-t Bu)2P}]2 (4) have not been successful.
Page(s): 2371-2375
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.42A(09) [September 2003]

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