8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

Base Information

Chemical Name:8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one
CAS No.:175359-00-9
Molecular Formula:C₃₁H₂₈O₆Si
Molecular Weight:524.645
Hs Code.:

Synonyms:8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

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Chemical Property of 8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

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Technology Process of 8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

There total 5 articles about 8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-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:

: 175358-84-6
7-methoxy-2-trimethylsilylbenzofuran-5-carboxaldehyde

: 175359-00-9
8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

Guidance literature:: Multi-step reaction with 6 steps

1: 83 percent / CrO₃, H₂SO₄, H₂O / acetone / 3.5 h

2: SOCl₂ / benzene / 2 h / Heating

3: 2.) SOCl₂ / 1.) CH₂Cl₂, 2 h, RT, 2.) RT, 1 h

4: 1.) n-BuLi, TMEDA / 1.) THF, hexane, 1.5 h, 2.) toluene, THF, hexane, 15 min

5: 1.) methylaluminium bis(2,6-di-tert-butyl)-4-methylphenoxide, 2.) 5N aq. HCl / 1.) toluene, THF, hexane, -78 deg C, 15 min, 2.) THF, reflux, 24 h

6: 88 percent / K₂CO₃ / CH₂Cl₂ / 120 h / Heating

With chromium(VI) oxide; hydrogenchloride; n-butyllithium; thionyl chloride; N,N,N,N,-tetramethylethylenediamine; sulfuric acid; water; bis(2,6-di-tert-butyl-4-methylphenoxide)methylaluminum; potassium carbonate; In dichloromethane; acetone; benzene;
DOI:10.1016/S0040-4020(96)00054-3

Reference yield:

: 175358-86-8
7-methoxy-2-trimethylsilylbenzofuran-5-carboxylic acid

: 175359-00-9
8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

Guidance literature:: Multi-step reaction with 5 steps

1: SOCl₂ / benzene / 2 h / Heating

2: 2.) SOCl₂ / 1.) CH₂Cl₂, 2 h, RT, 2.) RT, 1 h

3: 1.) n-BuLi, TMEDA / 1.) THF, hexane, 1.5 h, 2.) toluene, THF, hexane, 15 min

4: 1.) methylaluminium bis(2,6-di-tert-butyl)-4-methylphenoxide, 2.) 5N aq. HCl / 1.) toluene, THF, hexane, -78 deg C, 15 min, 2.) THF, reflux, 24 h

5: 88 percent / K₂CO₃ / CH₂Cl₂ / 120 h / Heating

With hydrogenchloride; n-butyllithium; thionyl chloride; N,N,N,N,-tetramethylethylenediamine; bis(2,6-di-tert-butyl-4-methylphenoxide)methylaluminum; potassium carbonate; In dichloromethane; benzene;
DOI:10.1016/S0040-4020(96)00054-3

Reference yield:

: 7-Methoxy-2-trimethylsilanyl-benzofuran-5-carbonyl chloride

: 175359-00-9
8-Benzyloxy-5,7-dimethoxy-2-trimethylsilanyl-1,12-dioxa-cyclopenta[a]chrysen-13-one

Guidance literature:: Multi-step reaction with 4 steps

1: 2.) SOCl₂ / 1.) CH₂Cl₂, 2 h, RT, 2.) RT, 1 h

2: 1.) n-BuLi, TMEDA / 1.) THF, hexane, 1.5 h, 2.) toluene, THF, hexane, 15 min

3: 1.) methylaluminium bis(2,6-di-tert-butyl)-4-methylphenoxide, 2.) 5N aq. HCl / 1.) toluene, THF, hexane, -78 deg C, 15 min, 2.) THF, reflux, 24 h

4: 88 percent / K₂CO₃ / CH₂Cl₂ / 120 h / Heating

With hydrogenchloride; n-butyllithium; thionyl chloride; N,N,N,N,-tetramethylethylenediamine; bis(2,6-di-tert-butyl-4-methylphenoxide)methylaluminum; potassium carbonate; In dichloromethane;
DOI:10.1016/S0040-4020(96)00054-3