6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

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Chemical Name:6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene
CAS No.:208454-72-2
Molecular Formula:C₆₀H₈₆O₈Si₃
Molecular Weight:1019.59
Hs Code.:

6-[2-(<i>tert</i>-butyl-dimethyl-silanyloxy)-ethyl]-3-(<i>tert</i>-butyl-diphenyl-silanyloxy)-2-(<i>tert</i>-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-<i>b</i>]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

Synonyms:6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

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Chemical Property of 6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

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Technology Process of 6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

There total 5 articles about 6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene 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: 95.0%

: 69739-34-0
t-butyldimethylsiyl triflate

: 208454-46-0
2-[(2R,3S,4aR,6S,7R,9aS)-3-(tert-Butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-((2R,3S,4aR,8aS)-2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocyclohepten-6-yl]-ethanol

: 208454-72-2
6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

Guidance literature:: With 2,6-dimethylpyridine; In dichloromethane; at 0 ℃; for 0.5h;
DOI:10.1021/jo990989b

Reference yield:

: 208454-48-2
((2R,3S)-3-Allyloxy-tetrahydro-pyran-2-yl)-acetaldehyde

: 208454-72-2
6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

Guidance literature:: Multi-step reaction with 4 steps

2.1: sec-butyllithium / tetrahydrofuran / -78 °C

2.2: 32 percent / tetrahydrofuran / -78 °C

3.1: 29 percent / TiCl₄; triphenylphosphine / CH₂Cl₂ / -78 - 0 °C

4.1: 95 percent / 2,6-lutidine / CH₂Cl₂ / 0.5 h / 0 °C

With 2,6-dimethylpyridine; sec.-butyllithium; titanium tetrachloride; triphenylphosphine; In tetrahydrofuran; dichloromethane; 2.1: Metallation / 2.2: allylsilylation / 3.1: Cyclization / 4.1: Etherification;
DOI:10.1021/jo990989b

Reference yield:

: 208454-47-1
(2R,3S,4aR,6S,7R,9aS)-3-(tert-Butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-6-(2-hydroxy-ethyl)-octahydro-1,5-dioxa-benzocyclohepten-7-ol

: 208454-72-2
6-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-3-(tert-butyl-diphenyl-silanyloxy)-2-(tert-butyl-diphenyl-silanyloxymethyl)-7-(2-vinyl-octahydro-pyrano[3,2-b]pyran-3-yloxy)-octahydro-1,5-dioxa-benzocycloheptene

Guidance literature:: Multi-step reaction with 4 steps

2.1: sec-butyllithium / tetrahydrofuran / -78 °C

2.2: 32 percent / tetrahydrofuran / -78 °C

3.1: 29 percent / TiCl₄; triphenylphosphine / CH₂Cl₂ / -78 - 0 °C

4.1: 95 percent / 2,6-lutidine / CH₂Cl₂ / 0.5 h / 0 °C

With 2,6-dimethylpyridine; sec.-butyllithium; titanium tetrachloride; triphenylphosphine; In tetrahydrofuran; dichloromethane; 2.1: Metallation / 2.2: allylsilylation / 3.1: Cyclization / 4.1: Etherification;
DOI:10.1021/jo990989b