Rhodium metal curcumin compound as well as preparation method and application thereof
A technology of curcumin and compounds, applied in the field of rhodium metal curcumin compounds and their preparation, to achieve the effects of extensive prevention and treatment, simple preparation method, and easy-to-obtain raw materials
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[0032] A kind of preparation method of rhodium metal curcumin compound, wherein, comprises the following steps:
[0033] Step 1. Dissolve 2,4-pentanedione, 3,4-dimethoxybenzaldehyde and diboron trioxide in a DMF solution with a concentration of 80-100%, and react at 70-90°C under nitrogen protection for 5-7 Hours, preferably after reacting at 80°C for 6 hours under the protection of nitrogen, then mix with hydrochloric acid, and leave to precipitate to obtain (1E, 3Z, 6E)-1,7-bis(3,4-dimethoxyphenyl )-3-hydroxyl-1,3,6-heptatrien-5-one, the structural formula is as follows:
[0034]
[0035] Step 2, triethyl orthoformate and the (1E,3Z,6E)-1,7-bis(3,4-dimethoxyphenyl)-3-hydroxyl-1,3,6-heptyl Trien-5-one is dissolved in toluene with a concentration of 80-100%, mixed with acetic acid with a concentration of 80-100%, reacted at 100-200°C for 5-10h, preferably at 150°C for 8 hours, and allowed to stand (1E,6E)-1,7-bis(3,4-dimethoxyphenyl)-4-hydroxyvinyl-1,6-heptadiene-2,5-dion...
Embodiment 1
[0044] 1. Product preparation
[0045] Dissolve 0.095g of 2,4-pentanedione, 0.12g of 3,4-dimethoxybenzaldehyde and 1mmol of boron trioxide in 10ml of DMF solution, react at 80°C for 6 hours under the protection of nitrogen, and then add 8ml of 0.5M Hydrochloric acid, standing and precipitating to obtain (1E, 3Z, 6E)-1,7-bis(3,4-dimethoxyphenyl)-3-hydroxyl-1,3,6-heptatrien-5-one; 100 mg of triethyl orthoformate and 40 mg of the (1E,3Z,6E)-1,7-bis(3,4-dimethoxyphenyl)-3-hydroxyl-1,3,6-heptanetri En-5-one was dissolved in 10ml of toluene, added 0.5mg of acetic acid, reacted at 150°C for 8 hours, and (1E,6E)-1,7-bis(3,4-dimethoxyphenyl)- 4-Hydroxyvinyl-1,6-heptadiene-2,5-dione; 30mg (1E,6E)-1,7-bis(3,4-dimethoxyphenyl)-4-hydroxy Vinyl-1,6-heptadiene-2,5-dione and 40 mg of dichloro(pentamethylcyclopentadienyl) rhodium (III) dimer were dissolved in 8 ml of dichloromethane, heated and stirred under reflux for 16 After the reaction was completed, the solution was evaporated to 3ml ...
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