Dimethyl acetylenedicarboxylate → HCID 19019908, compound

HRID 1109825Notes

Reaction equation

HRID 1109825 reaction equation
[C:1]([C:7]([O:9][CH3:10])=[O:8])#[C:2][C:3]([O:5][CH3:6])=[O:4].[CH2:11]=[CH:12][C:13]([Cl:15])=[CH2:14]>>[Cl:15][C:13]1[CH2:14][C:1]([C:7]([O:9][CH3:10])=[O:8])=[C:2]([CH2:11][CH:12]=1)[C:3]([O:5][CH3:6])=[O:4]

Participants

3

Reactant 2

HCID 12980Dimethyl acetylenedicarboxylateHCID 31369Chloroprene

Product 1

HCID 19019908HCID 19019908, compoundYield 100%

Procedure

Dimethyl acetylenedicarboxylate (6.3 g) and chloroprene (6.2 g) were heated at 50° C. for 25 hours. The reaction mixture was distilled under reduced pressure and the fraction boiling at 135° to 138° C. at 2.5 torr was collected. The thick oil weighed 4.6 g (100% yield based on unreacted dimethyl acetylenedicarboxylate).

Workup

  1. distillationThe reaction mixture was distilled under reduced pressure
  2. customthe fraction boiling at 135° to 138° C. at 2.5 torr was collected

Sources & evidence

ORD record
ord-231c935f47ee4cb0a26bae1342e2ef97
Source dataset
uspto-grants-1994_06
Patent number
US05322954

Reaction notes

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