(+)-3,9-dimethoxypterocarpan

Base Information

Chemical Name:(+)-3,9-dimethoxypterocarpan
CAS No.:23097-83-8
Molecular Formula:C₁₇H₁₆O₄
Molecular Weight:284.312
Hs Code.:

Synonyms:(+)-3,9-dimethoxypterocarpan

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Chemical Property of (+)-3,9-dimethoxypterocarpan

Chemical Property:

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Technology Process of (+)-3,9-dimethoxypterocarpan

There total 2 articles about (+)-3,9-dimethoxypterocarpan 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:

: 52085-14-0
4-benzoxy-salicylaldehyde

: 23097-83-8
(+)-3,9-dimethoxypterocarpan

Guidance literature:: Multi-step reaction with 9 steps

1.1: 1H-imidazole / N,N-dimethyl-formamide / 3 h / 20 °C

2.1: N-ethyl-N,N-diisopropylamine; di-n-butylboryl trifluoromethanesulfonate / dichloromethane / 1 h / -78 - 0 °C

2.2: -78 - 20 °C

3.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0 - 20 °C

4.1: lithium borohydride / tetrahydrofuran; water; diethyl ether / 1 h / 20 °C

5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 1 h / 20 °C

6.1: triphenylphosphine; diethylazodicarboxylate / tetrahydrofuran; toluene / 0.5 h / 20 °C

7.1: palladium 10% on activated carbon; hydrogen / methanol; ethyl acetate

8.1: (R)-10-camphorsulfonic acid / dichloromethane / 0.5 h / 20 °C

9.1: potassium carbonate / acetone / 20 °C

With 1H-imidazole; lithium borohydride; di-n-butylboryl trifluoromethanesulfonate; palladium 10% on activated carbon; (R)-10-camphorsulfonic acid; tetrabutyl ammonium fluoride; hydrogen; potassium carbonate; N-ethyl-N,N-diisopropylamine; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide; acetone; toluene;

Reference yield:

: 2880-58-2
2-methoxy-1,4-benzoquinone

: 606-91-7,7678-43-5,23097-83-8,63976-00-1
(+/-)-3,9-Dimethoxy-6a,11a-cis-dihydro-6H-benzofuro<3,2-c><1>benzopyran

Guidance literature:: Multi-step reaction with 3 steps

1: 59 percent / Ti(IV)Cl₄/Ti(OiPr)4 / CH₂Cl₂ / -78 - -25 °C

2: 87 percent / pyridine / CH₂Cl₂ / -70 - 20 °C

3: 92 percent / Et₃NHO₂CH, Pd(OAc)2, 1,1'-bis(diphenylphosphino)ferrocene / dimethylformamide / 74 °C

With pyridine; 1,1'-bis-(diphenylphosphino)ferrocene; palladium diacetate; triethylammonium formate; titanium(IV) isopropylate; titanium tetrachloride; In dichloromethane; N,N-dimethyl-formamide;
DOI:10.1039/C39890000454