Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1985-03-25
1986-07-08
Chan, Nicky
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D30922
Patent
active
045994358
ABSTRACT:
6-Carboxy-3,4-dihydro-2H-pyran and ring-substituted derivatives thereof are prepared by reacting a 1,4-disubstituted butane having leaving groups at the one and four positions in a liquid solvent medium with carbon monoxide at elevated temperature and pressure in the presence of a catalytic amount of a metal carbonyl compound and an alkali metal inorganic base or an alkaline earth metal inorganic base.
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Lee John Y.
Wolfram Joachim W.
Chan Nicky
Ethyl Corporation
Johnson Donald L.
Montgomery W. G.
Sieberth John F.
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