반응 #2285

ord-429297c02798479a94358463bcef7999

반응 방정식

O=Cc1ccc(Cl)cc1
4-chlorobenzaldehyde
CC(=O)CCC(=O)O
levulenic acid
C1CCNCC1
piperidine
Cc1ccccc1
toluene
O=C(O)CCC(=O)C=Cc1ccc(Cl)cc1
product
수율 44.0%
O=C(O)CCC(=O)C=Cc1ccc(Cl)cc1
3-(4-chlorocinnamoyl)-propionic Acid
수율 44.0%

용매

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타To a dry 250 ml flask equipped with a magnetic stirrer
  2. 2
    온도Dean-Stark trap, and reflux condenser
  3. 3
    온도The reaction was refluxed for 3 hours
  4. 4
    온도The reaction was cooled
  5. 5
    기타to yield a reddish-brown liquid which
  6. 6
    기타was triturated with hexane

실험 절차

To a dry 250 ml flask equipped with a magnetic stirrer, Dean-Stark trap, and reflux condenser was charged 15 g of 4-chlorobenzaldehyde, 12.4 g levulenic acid, 5.7 ml of piperidine, and 100 ml of toluene. The reaction was refluxed for 3 hours, after which no water was observed to azeotrope from the solution. The reaction was cooled and stripped to yield a reddish-brown liquid which was triturated with hexane to yield 11.2 g of product as a yellow solid.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US05728715uspto-grants-1998_03