Carbon Dioxide → Benzophenone
Reaction equation
[C:1]1([Li])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:8](=[O:10])=O>>[C:8]([C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)(=[O:10])[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1Participants
Procedure
In the preferred embodiment the chemical cocktail of the invention is a low-cost solution of an organometallic compound which rapidly absorbs and reacts with gaseous carbon dioxide to form benzophenone--a compound which has well separated infrared absorption bands when labeled in the carbonyl position with 13C or 12C. Exemplary of organometallic compounds, which in solution react with carbon dioxide to form benzophenone, are phenyl lithium and phenyl magnesium halides. M. I. Volpin and I. S. Kolomnikov, "The Reactions of Organometallic Compounds with Carbon Dioxide", Organomet. React. (1975) p. 320 and H. Gilman and P. R. VanEss, JACS, 55, 1258 (1933), the teachings of which are incorporated herein by reference, report that a 70% yield of benzophenone can be obtained by passing gaseous carbon dioxide through a phenyl lithium solution: ##STR1##
Workup
- customReact
Sources & evidence
- ORD record
- ord-8df14c152e1548e6955a2c77118eecb5
- Source dataset
- uspto-grants-1981_11
- Patent number
- US04298347
Reaction notes
Loading…