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The First Structure of a Lithiated Cyanamide; Synthesis of (PhNCNLi · HMPA) n by Extrusion of N 2 and S from 5‐Phenylamino‐1,2,3,4‐thiatriazole with Li Reagents and HMPA
Author(s) -
Armstrong David R.,
Banbury F. Adele,
CraggHine Ian,
Davidson Matthew G.,
Mair Francis S.,
Pohl Ehmke,
Raithby Paul R.,
Snaith Ronald
Publication year - 1993
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.199317691
Subject(s) - cyanamide , chemistry , extrusion , crystal structure , ion , crystallography , lithium (medication) , stereochemistry , organic chemistry , materials science , metallurgy , medicine , endocrinology
Alternating and orthogonal (LiNCN) 2 eight membered rings and (LiO) 2 four‐membered rings are linked through common Li atoms to form polymeric strands in the crystal structure of the title compound. The Li complex of the anion of PhNHCN is formed by extrusion of N 2 and S from aminothiatriazole 1 with Li bases such as LiOH, MeOLi, and LiNH 2 in the presence of hexamethyl phosphoric triamide (HMPA); however, the mechanism for this reaction is not yet clear.