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

Base Information

Chemical Name:2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-(4-dimethylamino)-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene
CAS No.:554430-96-5
Molecular Formula:C₃₆H₄₉NO₄Si₂
Molecular Weight:615.96
Hs Code.:

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

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

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

There total 5 articles about 2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-(4-dimethylamino)-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:

: 554430-19-2
5-(tert-butyl-dimethyl-silyloxy)-2-[7-(tert-butyl-dimethyl-silyloxy)-4-[(4-dimethylamino-phenyl)-hydroxy-methyl]-2H-chromen-3-yl]-phenol

: 554430-96-5
2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-(4-dimethylamino)-phenyl-5,11-dihydro-chromeno[4,3-c]-chromene

Guidance literature:: With 4 A molecular sieve; triphenylphosphine; diethylazodicarboxylate; In tetrahydrofuran; at 20 ℃; for 18h;
DOI:10.1021/jm060353u

Reference yield:

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

: 554430-96-5
2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-(4-dimethylamino)-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

: 554430-96-5
2,8-bis-(tert-butyl-dimethyl-silyloxy)-5-(4-dimethylamino)-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