Process for substituting a hydrocarbon group

Details Process for substituting a hydrocarbon group Process for substituting a hydrocarbon group

1988-07-14

1990-02-27

Gerstl, Robert

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

Organic compounds

Carboxylic acid esters

562503, 568907, 585375, C07C17700

Patent

active

049048201

ABSTRACT:
This invention encompasses a process for preparing higher order cuprate complexes which contain a carbanion for the formation of carbon to carbon bonds in reactions such as 1,4-conjugate addition. The complex is formed by reacting a first cuprate cmoplex with a stannane such that the carbanion to be used to form carbon to carbon bonds is transferred from the stannane to the first cuprate complex to form a different higher order cuprate complex. This process permits the in situ preparation of a higher order cuprate complex having the carbanion desired to be used in a synthetic reaction. Higher order cuprate complexes prepared by this process are particularly useful for the efficient preparation of pharmacologically active prostaglandins.

REFERENCES:
March, Advanced Organic Chemistry, pp. 400-404, 713-717 (1985).

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