4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

Base Information

Chemical Name:4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one
CAS No.:152455-79-3
Molecular Formula:C₃₂H₂₅BrN₂O₆
Molecular Weight:613.464
Hs Code.:

Synonyms:4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

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Chemical Property of 4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

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Technology Process of 4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

There total 9 articles about 4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-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:

: 4-(8-Benzyloxy-7-bromo-quinolin-2-yl)-3-methanesulfonyl-2,2,7,8-tetramethoxy-1-methyl-1,2,3,10b-tetrahydro-chromeno[3,4-c]pyridin-5-one

: 152455-79-3
4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

Guidance literature:: With 2,3-dicyano-5,6-dichloro-p-benzoquinone; In tetrahydrofuran; at -30 ℃; for 1h; Yield given;
DOI:10.1021/ja00076a035

Reference yield:

: 19283-70-6
3,4-dimethoxysalicylaldehyde

: 152455-79-3
4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

Guidance literature:: Multi-step reaction with 4 steps

1: 81 percent / piperidine / ethanol / 1 h / Heating

2: 75 percent / TiCl₄, Et₃N / CH₂Cl₂ / 6.5 h / 0 - 25 °C

3: t-BuOK / benzene / 3 h / 24 °C

4: DDQ / tetrahydrofuran / 1 h / -30 °C

With piperidine; potassium tert-butylate; titanium tetrachloride; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In tetrahydrofuran; ethanol; dichloromethane; benzene;
DOI:10.1021/ja00076a035

Reference yield:

: 99573-20-3
2-Amino-3-(benzyloxy)-4-bromobenzaldehyde

: 152455-79-3
4-(8'-(benzyloxy)-7'-bromoquinolin-2'-yl)-1-methyl-2,7,8-trimethoxy-5H-1-benzopyrano<3,4-c>pyridin-5-one

Guidance literature:: Multi-step reaction with 7 steps

1: NaOH / methanol / 6 h / 57 °C

2: HCl / 5 h / 24 °C

3: 1.) LDA / 1.) THF, hexane, -78 deg C, 15 min, 2.) THF, hexane, -78 deg C, 40 min

4: 81 percent / piperidine / ethanol / 1 h / Heating

5: 75 percent / TiCl₄, Et₃N / CH₂Cl₂ / 6.5 h / 0 - 25 °C

6: t-BuOK / benzene / 3 h / 24 °C

7: DDQ / tetrahydrofuran / 1 h / -30 °C

With piperidine; hydrogenchloride; sodium hydroxide; potassium tert-butylate; titanium tetrachloride; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium diisopropyl amide; In tetrahydrofuran; methanol; ethanol; dichloromethane; benzene;
DOI:10.1021/ja00076a035