2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

Base Information

Chemical Name:2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole
CAS No.:100669-34-9
Molecular Formula:C₂₃H₂₆N₂O₂
Molecular Weight:362.472
Hs Code.:

Synonyms:2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

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Chemical Property of 2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

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Technology Process of 2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

There total 7 articles about 2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 82.0%

: 16849-53-9
5-hydroxy-3-hydroxymethylene-2,2-dimethyl-7-pentyl-4-chromanone

: 100-63-0
phenylhydrazine

: 100669-34-9
2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

Guidance literature:: In acetic acid; at 80 ℃; for 2h;
DOI:10.1002/jhet.5570220270

Reference yield:

: 3350-78-5
3,3-Dimethylacryloyl chloride

: 100669-34-9
2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

Guidance literature:: Multi-step reaction with 3 steps

1: 48 percent / FeCl₃ / CHCl₃ / Ambient temperature; overnight

2: 88 percent / 1.) 50percent NaH; 2.) 5 N HCl / methanol / Heating; overnight

3: 82 percent / acetic acid / 2 h / 80 °C

With hydrogenchloride; iron(III) chloride; sodium hydride; In methanol; chloroform; acetic acid;
DOI:10.1002/jhet.5570220270

Reference yield:

: 16849-51-7
5-hydroxy-2,2-dimethyl-7-n-pentylchroman-4-one

: 100669-34-9
2-phenyl-1,4-dihydro-4,4-dimethyl-9-hydroxy-7-pentyl<1>benzopyrano<4,3-c>pyrazole

Guidance literature:: Multi-step reaction with 2 steps

1: 88 percent / 1.) 50percent NaH; 2.) 5 N HCl / methanol / Heating; overnight

2: 82 percent / acetic acid / 2 h / 80 °C

With hydrogenchloride; sodium hydride; In methanol; acetic acid;
DOI:10.1002/jhet.5570220270