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US 4,288,374 AGranted
Synthesis of 3-buten-1-ol, 3,4-dichlorobutan-1-ol and 3-chlorotetrahydrofuran
AssigneeE. I. Du Pont de Nemours and Company
InventorEdward N. Squire
Life of this patent
Estimating the term…
Abstract
Tetrahydrofuran is prepared by reacting propylene and aqueous formaldehyde stabilized with alcohol in the presence of silica sand to form 3-buten-1-ol and chlorinating the 3-buten-1-ol in the presence of Group IA or IIA chloride to form 3,4-dichlorobutan-1-ol which is then treated with a Group IA or IIA base to form 3-chlorotetrahydrofuran which is then hydrogenated to form tetrahydrofuran.
Claims5
A process for preparing 3-buten-1-ol from propylene and formaldehyde, the process comprising
- reacting propylene and aqueous formaldehyde stabilized with alcohol in the presence of silica sand at a temperature of from 250.degree.-350.degree. C., and a pressure of from 50-800 atmospheres in the absence of oxygen at a ratio of propylene to formaldehyde of at least 1:1.
Dependencies are inferred from the claim text.