2,2-Dimethyl-3,4-dihydro-2H-naphtho[1,2-b]pyran-6-ol

Base Information

Chemical Name:2,2-Dimethyl-3,4-dihydro-2H-naphtho[1,2-b]pyran-6-ol
CAS No.:18865-37-7
Molecular Formula:C15H16O2
Molecular Weight:228.291
Hs Code.:
Mol file:18865-37-7.mol

Synonyms:3,4-dihydro-2,2-dimethyl-2H-benzo[h]chromen-6-ol;2,2-Dimethyl-3,4-dihydro-2H-benzo[h]chromen-6-ol;nordihydrolapachenol;

Suppliers and Price of 2,2-Dimethyl-3,4-dihydro-2H-naphtho[1,2-b]pyran-6-ol

Supply Marketing:

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

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Total 3 raw suppliers

Chemical Property of 2,2-Dimethyl-3,4-dihydro-2H-naphtho[1,2-b]pyran-6-ol

Chemical Property:

Melting Point:86 - 87 °C
PSA：29.46000
LogP:3.64900

Purity/Quality:: 99% ^*data from raw suppliers

Safty Information:

Pictogram(s):
Hazard Codes:

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Technology Process of 2,2-Dimethyl-3,4-dihydro-2H-naphtho[1,2-b]pyran-6-ol

There total 8 articles about 2,2-Dimethyl-3,4-dihydro-2H-naphtho[1,2-b]pyran-6-ol 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: 96.0%

: 4707-32-8
2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene-5,6-dione

: 20331-67-3
2,2,2',2'-tetramethyl-3,4,5,6,3,'4'-hexahydro-2H,2'H-[5,5']bi[benzo[h]chromenyl]-6,6'-diol

: 18865-37-7
3,4-dihydro-2,2-dimethyl-2H-benzo[h]chromen-6-ol

Guidance literature:: With hydrogen iodide; In acetic acid; for 2h; Reflux;
DOI:10.1016/j.tetlet.2009.01.058

Reference yield: 50.0%

: 6-benzyloxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene

: 18865-37-7
3,4-dihydro-2,2-dimethyl-2H-benzo[h]chromen-6-ol

Guidance literature:: With 5%-palladium/activated carbon; hydrogen; In methanol; at 20 ℃; for 0.333333h;
DOI:10.3987/COM-17-13671

Reference yield:

: 130-15-4
[1,4]naphthoquinone

: 18865-37-7
3,4-dihydro-2,2-dimethyl-2H-benzo[h]chromen-6-ol

Guidance literature:: Multi-step reaction with 3 steps

1.1: sodium dithionite / 20 °C

2.1: formic acid; ascorbic acid / 3.67 h / 90 °C / Inert atmosphere

2.2: Inert atmosphere

3.1: 5%-palladium/activated carbon; hydrogen / methanol / 0.33 h / 20 °C

With formic acid; sodium dithionite; 5%-palladium/activated carbon; hydrogen; ascorbic acid; In methanol;
DOI:10.3987/COM-17-13671