# US 5,350,875 A · Michael reaction

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- Number: US 5,350,875 A
- Document ID: US5350875A
- Status: Granted
- Kind: A
- Application number: 08/156,755
- Filed: 1993-11-23
- Granted: 1994-09-27
- Earliest claimed: 1993-03-22
- Assignees: Albemarle Corporation
- Inventors: Govindarajulu Kumar; Mahmood Sabahi
- Web page: https://patentgrep.com/patent/US5350875A

## CPC

- C07C 67/347: by addition to unsaturated carbon-to-carbon bonds
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

Compounds varying from liquids to solids can be prepared via a reaction in which at least one Michael donor is reacted with one or more Michael acceptors in the presence of an undissolved basic compound as the catalyst.

## Claims

### Claim 1

A process which comprises reacting in the presence of an undissolved basic compound as a catalyst at least one Michael donor corresponding to the formula Z'--CH(E)(E") in which Z' is hydrogen, alkyl, or cycloalkyl and E" is hydrogen or an electron withdrawing group is reacted with at least one Michael acceptor corresponding to the formula CTT'=CT"G to form product molecules corresponding to the formula Z--C (E) (E').sub.p --Q.sub.s in which Z is alkyl, cycloalkyl, or --(CTT'--CT"G).sub.w --CTT'--CHT"G; Q is --(CTT'--CT"G).sub.t --CTT'--CHT"G; p is zero or one; s is respectively two or one; and each of t and w represents zero or a positive integer such that the compound contains at least acceptor moiety--T, T' and T" in the above formulas being independently selected from hydrogen, G', and organic groups of up to 20 carbons; and E, E', G, and G' being independently selected from electron withdrawing groups.

### Claim 2 (depends on 1)

The process of claim 1, wherein Z' is hydrogen, E and E" are --COOR groups, CTT'=CT'G is CH.sub.2 =CHCOOR, and the product molecules correspond to the formula ROOCCH.sub.2 CH.sub.2 --(ROOCCHCH.sub.2).sub.w --C(COOR).sub.2 --(CH.sub.2 CHCOOR).sub.t --CH.sub.2 CH.sub.2 COOR in which the sum of t and w in the molecules is in the range of 0-10 and the --COOR groups are independently selected from --COOR groups in which R is an alkyl of 1-8 carbons.