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Water → 2-[(4-Carboxyphenyl)methylene]-1,3-dicyclopropyl-1,3-propanedione

HRID 2081728
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HRID 2081728 반응식
[C:1]([C:4]1[CH:11]=[CH:10][C:7]([CH:8]=O)=[CH:6][CH:5]=1)([OH:3])=[O:2].[CH:12]1([C:15](=[O:22])[CH2:16][C:17]([CH:19]2[CH2:21][CH2:20]2)=[O:18])[CH2:14][CH2:13]1.O>FC(F)(F)C(O)=O>[C:1]([C:4]1[CH:11]=[CH:10][C:7]([CH:8]=[C:16]([C:15]([CH:12]2[CH2:14][CH2:13]2)=[O:22])[C:17]([CH:19]2[CH2:21][CH2:20]2)=[O:18])=[CH:6][CH:5]=1)([OH:3])=[O:2]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 962WaterHCID 120884-Formylbenzoic acidHCID 137807821,3-Dicyclopropylpropane-1,3-dione

생성물 1

HCID 190963932-[(4-Carboxyphenyl)methylene]-1,3-dicyclopropyl-1,3-propanedione

시약·촉매·용매 1

HCID 6422Trifluoroacetic acid용매

반응 조건

온도
20 °C

실험 절차

The procedure described in Example 19 was repeated by using 3.0 g 4-carboxybenzaldehyde and 3.06 g 1,3-dicyclopropyl-1,3-propanedione. Yield 1.7 g, mp 175°-178° C. in trifluoroacetic acid (10 ml) thionylchloride (4 ml) and catalytic amount of water (0,05 ml) were added at room temperature. The solution was stirred over right at 20° C. The solvent was evaporated and the residue was destilled in vacuo, bp 110° C./1,5 mbar. Yield 5,3 g (41%).

후처리

  1. customThe solvent was evaporated

출처 및 근거

ORD 기록
ord-d74341ceb52a4b2b9bfe3bc7fdeae916
출처 데이터셋
uspto-grants-1993_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05185370

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