2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-7-HYDROXY-, ETHYL ESTER

Base Information

• Chemical Name: 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-7-HYDROXY-, ETHYL ESTER
• CAS No.: 124439-98-1
• Molecular Formula: C₁₂H₁₄O₄
• Molecular Weight: 222.241
• Mol file: 124439-98-1.mol

Synonyms:2H-1-Benzopyran-2-carboxylicacid, 3,4-dihydro-7-hydroxy-, ethyl ester, (R)-; Ethyl (R)-7-Hydroxychroman-2-carboxylate

Chemical Property of 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-7-HYDROXY-, ETHYL ESTER

Chemical Property:

• PSA: 55.76000
• LogP: 1.64890

Purity/Quality:

3,4-DIHYDRO-7-HYDROXY-2H-1-BENZOPYRAN-2-CARBOXYLIC ACID ETHYL ESTER 95.00% ^*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-7-HYDROXY-, ETHYL ESTER

There total 1 articles about 2H-1-BENZOPYRAN-2-CARBOXYLIC ACID, 3,4-DIHYDRO-7-HYDROXY-, 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: 45.0%

(R)-3,4-dihydro-7-hydroxy-2H-1-benzopyran-2-carboxylic acid,ethyl ester (96566-14-2) → (S)-7-Hydroxy-chroman-2-carboxylic acid (124356-21-4) + (R)-7-Hydroxy-chroman-2-carboxylic acid (124356-21-4) + (R)-7-hydroxychroman-2-carboxylic acid ethyl ester (124439-98-1)

Guidance literature:

With water; Pseudomonas lipase enzyme; In tetrahydrofuran; Yield given. Yields of byproduct given. Title compound not separated from byproducts; 0.05 M aq. phoshate buffer (pH 7.0), at pH 8.0 (0.1 N aq. NaOH solution);

DOI:10.1021/jo00290a007

Reference yield:

(R)-7-hydroxychroman-2-carboxylic acid ethyl ester (124439-98-1) → Toluene-4-sulfonic acid (R)-6-chloro-7-hydroxy-chroman-2-ylmethyl ester (199739-01-0)

Guidance literature:

Multi-step reaction with 3 steps

1: 91 percent / LiBH₄ / tetrahydrofuran / 2 h

2: pyridine / 4 h / 5 °C

3: 677 mg / N-chlorosuccinimide / tetrahydrofuran / 18 h / Ambient temperature

With pyridine; N-chloro-succinimide; lithium borohydride; In tetrahydrofuran;

DOI:10.1021/jm9703653

Reference yield:

(R)-7-hydroxychroman-2-carboxylic acid ethyl ester (124439-98-1) → C24H24O7S2

Guidance literature:

Multi-step reaction with 2 steps

1: 91 percent / LiBH₄ / tetrahydrofuran / 2 h

2: pyridine / 4 h / 5 °C

With pyridine; lithium borohydride; In tetrahydrofuran;

DOI:10.1021/jm9703653

upstream raw materials:

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

Downstream raw materials:

Toluene-4-sulfonic acid (R)-6-chloro-7-hydroxy-chroman-2-ylmethyl ester

(R)-2-[(3-iodobenzylamino)methyl]chroman-7-ol

(R)-2-[(4-(4-(¹⁸F)fluorobutoxy)benzylamino)methyl]chroman-7-ol

(R)-1-(4-(2-(¹⁸F)fluoroethoxy)phenyl)-4-(4-(7-hydroxychroman-2-yl)-3-azabutyl)piperazine

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