- Vanilla amide synthesis method
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The invention discloses a vanilla amide synthesis method, which comprises the following step: by taking alcohol and vanilla amide as raw materials, or aldehyde and vanilla amide as raw materials, inorganic ferric salt and inorganic indium salt as a composite catalyst and oxygen as an oxidant, carrying out one-pot reaction in an organic solvent to generate vanilla amide. The synthesis raw materials adopted by the synthesis method are wide in source, a large amount of chemical reaction waste can be avoided in the whole reaction process, and the synthesis method is clean and environmentally friendly, has the advantages of mild and controllable reaction conditions, simple operation, convenience in product separation and purification, high product yield, wide universality of reaction substrates and the like, and is a method suitable for industrial production.
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Paragraph 0049-0052; 0077-0079
(2021/06/13)
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- A Short Route to Dihydrocapsaicinoids
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Huang-Minlon reduction of 8-methyl-7-oxononanoic acid (4ba), obtained by the acylation of cyclohexanone enamine 2a with 2-methylpropanoyl chloride (1b) followed by ring cleavage of the resultant β-diketone 3ba affords 8-methylnonanoic acid (5ba), the chloride of which reacts readily with 4-hydroxy-3-methoxybenzylamine to give dihydrocapsaicin (7ba).This reaction sequence works also efficiently for other dihydrocapsaicinoids such as 7aa and 7bb.
- Kaga, Harumi,Miura, Masakatsu,Orito, Kazuhiko
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p. 864 - 866
(2007/10/02)
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- The Capsaicinoids: Their Separation, Synthesis, and Mutagenicity
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Capsaicin (1b), the pungent ingredient in many varietes of Capsicums has recently been implicated as a possible carcinogen.When obtained from natural sources 1b is always accompanied by a number of related homologues.We have isolated seven of these homologues, characterized them, and synthesized them by a general and unique route developed in our laboratories.Also reported are mutagenicity data for 1b and an extract of red pepper as measured by the Ames assay and the V-79 mammalian cell assay.
- Gannett, Peter M.,Nagel, Donald L.,Reilly, Pam J.,Lawson, Terence,Sharpe, Jody,Toth, Bela
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p. 1064 - 1071
(2007/10/02)
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