Ring Closure and Ring Expansion Reactions in Bridged Triarylphosphanes and Triarylarsanes with  o ‐Isopropenyl Substituents. Novel Candidates for Turnstile Geometry | Zendy

Hellwinkel Dieter | Zendy; Wiel Andreas | Zendy; Sattler Gerhard | Zendy; Nuber Bernd | Zendy

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Ring Closure and Ring Expansion Reactions in Bridged Triarylphosphanes and Triarylarsanes with o ‐Isopropenyl Substituents. Novel Candidates for Turnstile Geometry

Author(s) -

Hellwinkel Dieter,

Wiel Andreas,

Sattler Gerhard,

Nuber Bernd

Publication year - 1990

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199006891

Subject(s) - ring (chemistry) , trigonal bipyramidal molecular geometry , chemistry , turnstile , closure (psychology) , geometry , crystallography , stereochemistry , ideal (ethics) , mathematics , crystal structure , computer science , market economy , philosophy , organic chemistry , economics , epistemology , programming language

ortho ‐Cyclizations to C 3r polycycles 1 and novel ring expansions by three ring members takes place on acid treatment of the 2,6‐diisopropenylphenyl derivatives 2 . The pentacoordinated o ‐chloranil adduct of 1 (Y = P) does not exhibit ideal turnstile geometry, but a distorted trigonal‐bipyramidal structure.

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