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Diverse outcomes of CO₂ fixation using alkali metal amides including formation of a heterobimetallic lithium–sodium carbamato-anhydride via lithium–sodium bis-hexamethyldisilazide

Author:
Gauld, Richard M., Kennedy, Alan R., McLellan, Ross, Barker, Jim, Reid, Jacqueline, Mulvey, Robert E.
Source:
Chemical communications 2019 v.55 no.10 pp. 1478-1481
ISSN:
1364-548X
Subject:
amides, anhydrides, carbon dioxide, carbon dioxide fixation, chemical communication, chemical reactions, lithium, polymers, pyrroles
Abstract:
Fixation of CO₂ by lithium amides derived from pyrrole and diisopropylamine generates a lithium carbamate polymer and dodecamer respectively. Moving to lithium–sodium hexamethyldisilazide produces a more complicated, intriguing reaction, where unusually the bimetallic composition is maintained in the product but its composition contains both carbamato and anhydride functionalities.
Agid:
6287760