rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

Base Information

Chemical Name:rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde
CAS No.:96565-59-2
Molecular Formula:C₁₇H₁₆O₃
Molecular Weight:268.312
Hs Code.:

Synonyms:rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

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Chemical Property of rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

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Technology Process of rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

There total 4 articles about rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde 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: 70.0%

: 197388-46-8
ethyl 7-(Benzyloxy)chroman-2-carboxylate

: 96565-59-2
rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

Guidance literature:: With diisobutylaluminium hydride; In toluene; at -78 ℃; for 2h;
DOI:10.1021/jm00128a028

Reference yield:

: 23866-72-0
ethyl 7-hydroxy-4-oxo-4H-chromen-2-carboxylate

: 96565-59-2
rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

Guidance literature:: Multi-step reaction with 3 steps

1: 73.4 percent / H₂ / 10percent Pd/C / acetic acid / 41 h / Ambient temperature

2: 86.5 percent / K₂CO₃ / dimethylformamide / 65 h / Ambient temperature

3: 70 percent / diisobutylaluminum hydride / toluene / 2 h / -78 °C

With hydrogen; diisobutylaluminium hydride; potassium carbonate; palladium on activated charcoal; In acetic acid; N,N-dimethyl-formamide; toluene;
DOI:10.1021/jm00128a028

Reference yield:

: 96566-14-2
(R)-3,4-dihydro-7-hydroxy-2H-1-benzopyran-2-carboxylic acid,ethyl ester

: 96565-59-2
rac-3,4-dihydro-7-(phenylmethoxy)-2H-1-benzopyran-2-carboxaldehyde

Guidance literature:: Multi-step reaction with 2 steps

1: 86.5 percent / K₂CO₃ / dimethylformamide / 65 h / Ambient temperature

2: 70 percent / diisobutylaluminum hydride / toluene / 2 h / -78 °C

With diisobutylaluminium hydride; potassium carbonate; In N,N-dimethyl-formamide; toluene;
DOI:10.1021/jm00128a028