HCID 21515750, compound → Ethyl 4-cyclohexylidenebut-2-enoate

HRID 1284169Notes

Reaction equation

HRID 1284169 reaction equation
[C:1]1(=[C:7]=[CH:8][CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1>CO.C(=O)([O-])[O-].[Ca+2]>[C:1]1(=[CH:7][CH:8]=[CH:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

4

Reactant 1

HCID 21515750HCID 21515750, compound

Product 1

HCID 54428789Ethyl 4-cyclohexylidenebut-2-enoateYield 92%

Reagents, catalysts & solvents 2

HCID 10112Calcium CarbonateCatalystHCID 887MethanolSolvent

Procedure

Ethyl 4-cyclohexylidene-3-butenoate was reacted at 50°C. for 4 hours in 80 ml of methanol in the presence of 1.5g of calcium carbonate as a catalyst. In the same manner as in the preceding Examples, the resulting reaction mixture was neutralized and subjected to distillation under reduced pressure. Ethyl 4-cyclohexylidene-2-butenoate was obtained in a yield of 92% from a fraction boiling at 111 to 114°C. under 3 mm Hg.

Workup

  1. distillationsubjected to distillation under reduced pressure

Sources & evidence

ORD record
ord-e8e1e06ebbc0440bb87c54bb9d397436
Source dataset
uspto-grants-1976_08
Patent number
US03978100

Reaction notes

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