2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-, ETHYL ESTER

Base Information

• Chemical Name: 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-, ETHYL ESTER
• CAS No.: 24698-77-9
• Molecular Formula: C12H14O3
• Molecular Weight: 206.241
• Hs Code.: 2932999099
• Mol file: 24698-77-9.mol

Synonyms:2-Chromancarboxylicacid, ethyl ester (7CI,8CI);2-Ethoxycarbonylchroman;Ethyl2-chromancarboxylate;

Chemical Property of 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-, ETHYL ESTER

Chemical Property:

• Boiling Point: 299.888 °C at 760 mmHg
• Flash Point: 121.838 °C
• PSA: 35.53000
• Density: 1.137 g/cm³
• LogP: 1.94330
• Storage Temp.: 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

EthylChroman-2-carboxylate ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-, ETHYL ESTER

There total 8 articles about 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-, ETHYL ESTER 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: 94.0%

ethyl 4-oxo-4H-1-benzopyran-2-carboxylate (14736-31-3) → ethyl Chroman-2-carboxylate (24698-77-9)

Guidance literature:

With palladium 10% on activated carbon; hydrogen; acetic acid; In ethyl acetate; at 20 ℃; for 13h;

DOI:10.1021/acs.orglett.8b01475

Reference yield: 93.0%

chroman-2-carboxylic acid (51939-71-0) + ethanol (64-17-5) → ethyl Chroman-2-carboxylate (24698-77-9)

Guidance literature:

With sulfuric acid; In dichloromethane; for 21h; Heating;

DOI:10.1002/jhet.5570290223

Reference yield:

C18H18IO3(1+)*CF3O3S(1-) → ethyl Chroman-2-carboxylate (24698-77-9)

Guidance literature:

With palladium on activated charcoal; hydrogen; In methanol; at 20 ℃; under 760.051 Torr;

DOI:10.1002/adsc.202100809

upstream raw materials:

chroman-2-carboxylic acid

ethanol

o-hydroxyacetophenone

ethyl 4-oxo-4H-1-benzopyran-2-carboxylate

Downstream raw materials:

ethyl 2,3-dihydrobenzopyran-(2R)-carboxylate

3,4-dihydro-2H-1-benzopyran-2-methanol

rac-ethyl 2-methylchroman-2-carboxylate

2-hydroxymethyl-2-methylchroman

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