By-product recycling process

Details By-product recycling process By-product recycling process

1979-04-26

1980-09-16

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560217, 560225, C07C 6952

Patent

active

042231590

ABSTRACT:
3-Methyl-2-butenyl 3,3-dimethyl-4-pentenoate, by-product in the condensation between 3-methyl-2-butene-1-ol and a lower alkyl orthoacetate, can be recycled into the condensation by alkoxylating it with a lower alkyl alcohol or orthoacetate in the presence of a basic ester exchange catalyst.

REFERENCES:
patent: 3056817 (1962-10-01), Werber et al.
patent: 3636268 (1972-08-01), Jobert et al.
patent: 3784578 (1974-01-01), Swodenk et al.
Groggins, O. H. et al. "Unit Processes in Organic Synthesis," pp. 696-697, 5th Ed. (1958), McGraw Hill, Publ.
Kondo, Kiyosi et al., "New Synthesis of the Acid Moiety of Pyrethroids," pp. 128-136 of ACS Symposium Series 42, Synthetic Pyrethriods, Elliott, Michael, Ed. (1976).

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