Preparation of symmetrical ethers

Details Preparation of symmetrical ethers Preparation of symmetrical ethers

1975-07-23

1977-12-06

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260614R, C07C 4100

Patent

active

040616827

ABSTRACT:
Symmetrical ethers are prepared in high yield by reacting an alkyl halide, sulfate, or sulfonate with base in the presence of a catalytic amount of both an onium salt and a carboxylate salt. For example, dibenzyl ether is produced in yields exceeding 95 percent by contacting benzylchloride with a 50 percent sodium hydroxide solution in the presence of a catalytic amount of both tetra-n-butylammonium bisulfate and sodium acetate.

REFERENCES:
patent: 3824295 (1974-07-01), Gordon
patent: 3931238 (1976-01-01), Starks
Herriott et al., Tetrahedron, Letters No. 44, (1972), 4521-4524.
McKillop et al., Tetrahedron, vol. 30, (1974), 1379-1382.

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