2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Base Information

Chemical Name:2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene
CAS No.:554430-95-4
Molecular Formula:C₃₄H₄₄O₄Si₂
Molecular Weight:572.892
Hs Code.:

Synonyms:2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Suppliers and Price of 2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Supply Marketing:

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

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Total 0 raw suppliers

Chemical Property of 2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Chemical Property:

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Technology Process of 2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

There total 12 articles about 2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-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: 50.0%

: 554430-18-1
5-(tert-butyl-dimethyl-silyloxy)-2-[7-(tert-butyl-dimethyl-silyloxy)-4-(hydroxy-phenyl-methyl)-2H-chromen-3-yl]-phenol

: 554430-95-4
2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Guidance literature:: With hydrogenchloride; In toluene; at 20 ℃; for 0.333333h;

Reference yield:

: 554430-87-4
2,8-bis(tert-butyl-dimethyl-silyloxy)-11H-chromeno[4,3-c]chromen-5-one

: 554430-95-4
2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Guidance literature:: Multi-step reaction with 3 steps

1: diisobutylaluminum hydride / toluene / 5 h / -78 °C

2: tetrahydrofuran / 14 h / 0 - 20 °C

3: PPh₃; diethyl diazodicarboxylate; molecular sieves 4 Angstroem / tetrahydrofuran / 18 h / 20 °C

With 4 A molecular sieve; diisobutylaluminium hydride; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; toluene; 3: Mitsunobu reaction;
DOI:10.1021/jm060353u

Reference yield:

: 553681-47-3
2,8-bis(tert-butyl-dimethyl-silyloxy)-5,11-dihydro-chromeno[4,3-c]chromen-5-ol

: 554430-95-4
2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Guidance literature:: Multi-step reaction with 2 steps

1: tetrahydrofuran / 14 h / 0 - 20 °C

2: PPh₃; diethyl diazodicarboxylate; molecular sieves 4 Angstroem / tetrahydrofuran / 18 h / 20 °C

With 4 A molecular sieve; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; 2: Mitsunobu reaction;
DOI:10.1021/jm060353u