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Synthesis of the substituted 3,9-bisphenoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecanes and investigation of the effect of substituents on their resistance to hydrolysis

M. Gőghová, M. Karvaš, and J. Durmis

Research Institute of Chemical Technology, CS-836 03 Bratislava

 

Abstract: The 3,9-bisphenoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5,5]undecanes substituted in positions 2; 4; 2,4; 2,6 of the phenyl groups were synthesized and the influence of substituents on hydrostability of these substances was investigated by the use of a developed titrimetric method. It has been found that different alkyl or aralkyl substituents in position 2 or 4 have not any significant influence on hydrostability. The resistance to hydrolysis of the 2,4-disubstituted derivatives in the phenyl group depends on character of the substituent in position 2 and electronic effect of the substituent in position 4. A convenient alkyl or aralkyl substitution in position 2 or 4 enables us to obtain hydrolytically very stable cyclic phosphites.

Full paper in Portable Document Format: 433a421.pdf

 

Chemical Papers 43 (3) 421–432 (1989)

Monday, November 23, 2020

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