2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one

Base Information

Chemical Name:2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one
CAS No.:18385-68-7
Molecular Formula:C10H10O2
Molecular Weight:162.19
Hs Code.:2932999099
Mol file:18385-68-7.mol

Synonyms:2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one;5-methylchroman-4-one;5-Methyl-2,3-dihydrochroMen-4-one

Suppliers and Price of 2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

TRC
5-Methylchroman-4-one
50mg
$ 100.00

Crysdot
5-Methylchroman-4-one 95+%
250mg
$ 196.00

Crysdot
5-Methylchroman-4-one 95+%
100mg
$ 123.00

Crysdot
5-Methylchroman-4-one 95+%
1g
$ 490.00

Chemenu
5-Methyl-2,3-dihydrochromen-4-one 95%
1g
$ 463.00

American Custom Chemicals Corporation
5-METHYLCHROMAN-4-ONE 95.00%
5MG
$ 496.95

Alichem
5-Methylchroman-4-one
1g
$ 514.80

Alichem
5-Methylchroman-4-one
250mg
$ 196.02

Total 20 raw suppliers

Chemical Property of 2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one

Chemical Property:

PSA：26.30000
Density:1.157
LogP:1.96020

Purity/Quality:

99%, ^*data from raw suppliers

5-Methylchroman-4-one ^*data from reagent suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Uses 5-Methylchroman-4-one is a useful reagent in cyclization and ring enlargement of (arylazo)(isocyanato)benzopyran derivatives to synthesize novel tricyclic O,N-heterocycles.

Technology Process of 2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one

There total 5 articles about 2,3-Dihydro-5-methyl-4H-1-benzopyran-4-one 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%

: 25173-36-8
3-(3-methylphenoxy)propionic acid

: 18385-69-8
7-methylchroman-4-one

: 18385-68-7
5-methyl-2,3-dihydrochromen-4-one

Guidance literature:: With acid activated montmorillonite K-10; In toluene; for 0.5h; Reflux; Inert atmosphere;
DOI:10.1016/j.tetlet.2021.153372

Reference yield:

: 25173-36-8
3-(3-methylphenoxy)propionic acid

: 18385-68-7
5-methyl-2,3-dihydrochromen-4-one

Guidance literature:: With polyphosphoric acid; In N,N-dimethyl-formamide; for 5h; Reflux;

Reference yield:

: 106-44-5
p-cresol

: 18385-68-7
5-methyl-2,3-dihydrochromen-4-one

Guidance literature:: Multi-step reaction with 2 steps

1: potassium carbonate / toluene / 8 h / Reflux

2: polyphosphoric acid / N,N-dimethyl-formamide / 5 h / Reflux

With potassium carbonate; In N,N-dimethyl-formamide; toluene;