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On the Nature of the 7‐Norbornadienyllithiums. Preliminary Communication
Author(s) -
Goldstein Melvin J.,
Wenzel Timothy T.
Publication year - 1984
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19840670802
Subject(s) - chemistry , lithium (medication) , hydrocarbon , medicinal chemistry , mercury (programming language) , stereochemistry , computational chemistry , inorganic chemistry , organic chemistry , medicine , computer science , programming language , endocrinology
Lithium reductions of 7‐chloronorbornadiene and of bis (7‐norbornadienyl)mercury both provide (C 7 H 7 ) 2 Li 2 ( 5a ). This product is accompanied by C 7 H 7 Li 2 Cl ( 5c ) in the first case, and by C 7 H 7 Li ( 5b ) in the second. The theoretically anticipated properties of all three organolithiums are apparent in the consistent C s symmetry of their hydrocarbon ligands, their protolytic destruction by 12‐crown‐4, and their significant J (C(7), Li) ( 5a , 7.6; 5b , 16.0; 5c 8.9 Hz).