trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

Base Information

Chemical Name:trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one
CAS No.:119123-57-8
Molecular Formula:C₂₀H₁₉NO₂
Molecular Weight:305.376
Hs Code.:

trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzo<h>pyrano<4,3-b>pyridin-2(1H)-one

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

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Chemical Property of trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

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Technology Process of trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

There total 8 articles about trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-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: 11.0%

: 119153-79-6
C₂₁H₁₉NO₄

: 119123-57-8,119153-80-9
cis-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

: 119123-57-8,119153-80-9
trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

Guidance literature:: at 200 ℃;
DOI:10.1021/jo00296a060

Reference yield: 11.0%

: 119153-79-6
C₂₁H₁₉NO₄

: 119123-57-8,119153-80-9
cis-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

: 119123-57-8,119153-80-9
trans-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

Guidance literature:: at 200 ℃;
DOI:10.1021/jo00296a060

Reference yield:

: 17118-70-6
(chlorocarbonyl)phenyl ketene

: 119123-57-8,119153-80-9
cis-3,4-dihydro-1,4-dimethyl-3-phenyl-5H-benzopyrano<4,3-b>pyridin-2(1H)-one

Guidance literature:: Multi-step reaction with 2 steps

1: 61 percent / Et₃N / benzene / 2 h / 50 °C

2: thermal CO₂ elimination

With triethylamine; In benzene;
DOI:10.1039/c39870000840