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Zur Reaktion von Dihydroxybiphenylen mit Phosphorpentachlorid ‐ Phosphepine mit Phosphonium‐ und Phosphoranstruktur
Author(s) -
Gloede Jörg,
Pieper Ursula,
Habicher Wolf D.,
Schneider Matthias
Publication year - 2002
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200202)628:2<480::aid-zaac480>3.0.co;2-6
Subject(s) - phosphorus pentachloride , phosphonium , hydrolysis , chemistry , molecule , phosphorus , crystal structure , medicinal chemistry , polymer chemistry , stereochemistry , organic chemistry
The 2, 2'‐dihydroxybiphenyl derivatives 1d‐f react with phosphorus pentachloride to give the dioxaphosphepinium hexachlorophosphates 3a, 3b , and 17 . The trichloro‐dioxaphosphepins 8a, 8b , and 21 were discussed as intermediates, which were obtained by chlorination of the 6‐chloro‐dioxaphosphepins 7a, 7b , and 20 . The hydrolysis of the dioxaphosphepins leads to the stable, cyclic phosphates 4a, 4b, 9a, 9b, 11a, 11b, 19a, and 19b . The crystal struc‐ture of 4a was determined; two different molecules was observed in the asymmetric unit.