Metal rhodium compound as well as preparation method and application thereof
A rhodium compound and metal technology, applied in the field of metal rhodium compounds and their preparation, achieves the effects of good insecticidal effect, cost reduction and low cost
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[0031] A kind of preparation method of rhodium metal compound, wherein, comprise the following steps:
[0032] Step 1. Dissolve 2,4-pentanedione, 3-methoxy-4-hydroxybenzaldehyde, and diboron trioxide in a DMF solution with a concentration of 90-100%, preferably pure DMF solution, under nitrogen protection for 70- After reacting at 90°C for 5-7 hours, preferably 80°C and 6 hours, then mix with hydrochloric acid, and stand to precipitate to obtain (1E, 3Z, 6E)-1,7-bis(3-methoxy-4-hydroxybenzene Base)-3-hydroxyl-1,3,6-heptatrien-5-one, the structural formula is as follows:
[0033]
[0034]Step 2, p-ethylbenzaldehyde and (1E,3Z,6E)-1,7-bis(3-methoxyl-4-hydroxyphenyl)-3-hydroxyl-1,3,6-heptatriene -5-ketone is dissolved in toluene with a concentration of 90-100%, preferably pure toluene, and then mixed with acetic acid with a concentration of 90-100%, wherein pure acetic acid is preferred, and reacted at 100-150°C for 5-10h, preferably 100°C and 6h, (1E, 6E)-1,7-bis(3-methoxy-...
Embodiment 1
[0043] 1. Product preparation
[0044] Weigh 0.095g of 2,4-pentanedione, 0.12g of 3-methoxy-4-hydroxybenzaldehyde, and 1mmol of boron trioxide and dissolve them in 10ml of DMF solution. After reacting at 80°C for 6 hours under the protection of nitrogen, add 8ml 0.5M hydrochloric acid, standing to precipitate (1E, 3Z, 6E)-1,7-bis(3-methoxy-4-hydroxyphenyl)-3-hydroxy-1,3,6-heptatriene-5 -ketone; 20 mg of p-ethylbenzaldehyde and 40 mg of (1E,3Z,6E)-1,7-bis(3-methoxy-4-hydroxyphenyl)-3-hydroxyl-1,3,6 -Heptatriene-5-one was dissolved in 10ml of toluene, added 0.5mg of acetic acid, reacted at 150°C for 8h, and (1E,6E)-1,7-bis(3-methoxy-4-hydroxyphenyl) was precipitated after standing -4-(p-ethylphenylvinyl)-1,6-heptadiene-2,5-dione; 30 mg of (1E,6E)-1,7-bis(3-methoxy-4 -Hydroxyphenyl)-4-(p-ethylphenylvinyl)-1,6-heptadiene-2,5-dione and 40 mg dichloro(pentamethylcyclopentadienyl)rhodium(III ) dimer was dissolved in 8ml of dichloromethane, heated and stirred to reflux for 16 hours...
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