Acetic Acid → 3-Oxo-alpha-ionone

HRID 1074645

반응식

HRID 1074645 반응식
[CH3:1][C:2]1[CH:7](/[CH:8]=[CH:9]/[C:10]([CH3:12])=[O:11])[C:6]([CH3:14])([CH3:13])[CH2:5][CH2:4][CH:3]=1.[Br-].[NH4+].C(O)(=[O:19])C>O.O.O.O.C([O-])(=O)C.[Co+2].C([O-])(=O)C.C1CCCCC1>[CH3:1][C:2]1[CH:7](/[CH:8]=[CH:9]/[C:10](=[O:11])[CH3:12])[C:6]([CH3:14])([CH3:13])[CH2:5][C:4](=[O:19])[CH:3]=1

참가 물질

6

실험 절차

Items 1-6 given in Table 1 hereinafter are carried out following the procedure of Example 1 substituting therein 5 g of 92% α-ionone for the 40 g of 98% α-ionone, 1.3 g (20 mol percent) of cobalt acetate tetrahydrate for the 10.4 g, and 0.7 g, (27 mol percent) of ammonium bromide for the 4.0 g. The amount of solvent substituting for glacial acetic acid and cyclohexane is represented in Table 1 and amounts to 60 ml. The yields of 3,5,5-trimethyl-4-[(E)-3-oxo-1-butenyl]-2-cyclohexen-1-one (3-oxo-α-ionone) are determined by gas chromatography (GC). It will be observed that the sum of all products appearing in the gas chromatogram only amounts to a maximum of about 60% of the total weight. The remainder probably consists of oligomeric by-products. The oxidation conditions are not optimized.

출처 및 근거

ORD 기록
ord-792a6b9d0d4b4b698db31596822e5214
출처 데이터셋
uspto-grants-1983_07
특허 번호
US04393243

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