2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

Base Information

Chemical Name:2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester
CAS No.:205865-34-5
Molecular Formula:C₆₃H₈₀O₉Si
Molecular Weight:1009.41
Hs Code.:

2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

Synonyms:2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

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Chemical Property of 2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

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Technology Process of 2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

There total 7 articles about 2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester 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: 99.0%

: 108-24-7
acetic anhydride

: 205865-33-4
2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-10-(tert-butyl-diphenyl-silanyloxy)-3-hydroxy-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

: 205865-34-5
2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

Guidance literature:: With dmap; triethylamine; In dichloromethane; at 25 ℃; for 1h;
DOI:10.1002/(SICI)1521-3765(19990201)5:2<628::AID-CHEM628>3.0.CO;2-E

Reference yield:

: 126694-06-2
(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-2,11-Bis-(2-benzyloxy-ethyl)-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-3-ol

: 205865-34-5
2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 97 percent / H₂ / 10 percent Pd/C / methanol / 24 h / 25 °C

2: 87 percent / PPTS / dimethylformamide / 13 h / 25 °C

3: 100 percent / 4-DMAP / CH₂Cl₂ / 2 h / 25 °C

4: 97 percent / 1-camphorsulfonic acid / methanol; CH₂Cl₂ / 1 h / 25 °C

5: 99 percent / CH₂Cl₂ / 36 h / 40 °C

6: 99 percent / Et₃N, 4-DMAP / CH₂Cl₂ / 1 h / 25 °C

With dmap; camphor-10-sulfonic acid; hydrogen; pyridinium p-toluenesulfonate; triethylamine; palladium on activated charcoal; In methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1002/(SICI)1521-3765(19990201)5:2<628::AID-CHEM628>3.0.CO;2-E

Reference yield:

: 4-dimethylamino-N-triphenylmethylpyridinium chloride

: 205865-34-5
2,2-Dimethyl-propionic acid 2-[(2S,3R,4S,5aS,6aR,8R,10S,11R,12aS,13aR)-3-acetoxy-10-(tert-butyl-diphenyl-silanyloxy)-4,6a,8-trimethyl-2-(2-trityloxy-ethyl)-tetradecahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cycloocten-11-yl]-ethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: 99 percent / CH₂Cl₂ / 36 h / 40 °C

2: 99 percent / Et₃N, 4-DMAP / CH₂Cl₂ / 1 h / 25 °C

With dmap; triethylamine; In dichloromethane;
DOI:10.1002/(SICI)1521-3765(19990201)5:2<628::AID-CHEM628>3.0.CO;2-E