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Technology Process of (2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene

(2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene

Base Information
  • Chemical Name:(2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene
  • CAS No.:118964-28-6
  • Molecular Formula:C41H44O13
  • Molecular Weight:744.793
  • Hs Code.:
(2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene

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Chemical Property of (2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene
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Technology Process of (2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene

There total 9 articles about (2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene 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:

(2R,3S,4R,2'R,3'S)-2-(3,4-Dihydroxy-phenyl)-2'-(3-hydroxy-4-methoxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[4,6']bichromenyl-3,7,3',5',7'-pentaol
118964-25-3

(2R,3S,4R,2'R,3'S)-2-(3,4-Dihydroxy-phenyl)-2'-(3-hydroxy-4-methoxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[4,6']bichromenyl-3,7,3',5',7'-pentaol

(2R,3S:6R,7S,8R)-3,7-diacetoxy-9-methoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-trans-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-f>chromene
118964-28-6,119065-95-1,119065-96-2,119067-93-5,123484-77-5,123484-80-0,123484-82-2,130932-40-0,130932-42-2,130932-44-4,130932-46-6

(2R,3S:6R,7S,8R)-3,7-diacetoxy-9-methoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-trans-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-f>chromene

Guidance literature:
Multi-step reaction with 2 steps
1: 0.025M Na2CO3, 0.025M NaHCO3 / H2O / 3 h / 50 °C
2: 2.) pyridine / 1.) MeOH-diethylether, -15 deg C, 48 h, 2.) RT
With pyridine; sodium hydrogencarbonate; sodium carbonate; In water;

Reference yield:

(2R,3S,4R,2'R,3'S)-2-(3,4-Dihydroxy-phenyl)-2'-(3-hydroxy-4-methoxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[4,6']bichromenyl-3,7,3',5',7'-pentaol
118964-25-3

(2R,3S,4R,2'R,3'S)-2-(3,4-Dihydroxy-phenyl)-2'-(3-hydroxy-4-methoxy-phenyl)-3,4,3',4'-tetrahydro-2H,2'H-[4,6']bichromenyl-3,7,3',5',7'-pentaol

(2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene
118964-28-6,119065-95-1,119065-96-2,119067-93-5,123484-77-5,123484-80-0,123484-82-2,130932-40-0,130932-42-2,130932-44-4,130932-46-6

(2R,3S:6S,7S,8R)-3,7-diacetoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-h>chromene

Guidance literature:
Multi-step reaction with 2 steps
1: 0.025M Na2CO3, 0.025M NaHCO3 / H2O / 3 h / 50 °C
2: 2.) pyridine / 1.) MeOH-diethylether, -15 deg C, 48 h, 2.) RT
With pyridine; sodium hydrogencarbonate; sodium carbonate; In water;

Reference yield:

acetic anhydride
108-24-7

acetic anhydride

(2S,3S,4R,8S,9R)-2,8-Bis-(3,4-dimethoxy-phenyl)-4-(2,4-dimethoxy-phenyl)-5-methoxy-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,9-diol

(2S,3S,4R,8S,9R)-2,8-Bis-(3,4-dimethoxy-phenyl)-4-(2,4-dimethoxy-phenyl)-5-methoxy-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,9-diol

(2S,3R:6S,7S,8R)-3,7-diacetoxy-9-methoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-f>chromene
118964-28-6,119065-95-1,119065-96-2,119067-93-5,123484-77-5,123484-80-0,123484-82-2,130932-40-0,130932-42-2,130932-44-4,130932-46-6

(2S,3R:6S,7S,8R)-3,7-diacetoxy-9-methoxy-2,6-bis(3,4-dimethoxyphenyl)-8-(2,4-dimethoxyphenyl)-2,3-trans-6,7-cis-7,8-trans-3,4,7,8-tetrahydro-2H,6H-pyrano<2,3-f>chromene

Guidance literature:
With pyridine; Yield given; Ambient temperature;
DOI:10.1016/0031-9422(90)87119-F
upstream raw materials:

diazomethane

acetic anhydride

(2S,3S,4R,8R,9R)-2,8-Bis-(3,4-dihydroxy-phenyl)-4-(2,4-dihydroxy-phenyl)-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,5,9-triol

(2S,3S,4R,8S,9R)-2,8-Bis-(3,4-dihydroxy-phenyl)-4-(2,4-dihydroxy-phenyl)-3,4,9,10-tetrahydro-2H,8H-pyrano[2,3-f]chromene-3,5,9-triol

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