(1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

Base Information

Chemical Name:(1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester
CAS No.:198402-09-4
Molecular Formula:C₃₅H₅₁NO₇Si
Molecular Weight:625.878
Hs Code.:

(1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

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Chemical Property of (1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

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Technology Process of (1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

There total 10 articles about (1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl 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:

: 135297-04-0
(3S,4R)-4-[(1R,2S,3R)-2,3-epoxycyclohexyl]-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one

: 198402-09-4
(1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

Guidance literature:: Multi-step reaction with 8 steps

1: 53 percent / ceric ammonium nitrate / acetonitrile / 20 h / Ambient temperature

2: 79 percent / 2,6-lutidine / CH₂Cl₂ / 5 °C

3: 92 percent / H₂ / Pd/C / ethyl acetate / 2 h / 760 Torr

4: 72 percent / 2(OAc)>4 / CH₂Cl₂ / 6 h / Ambient temperature

5: 60 percent / potassium tert-butoxide / 2 h / -20 deg C -> room temperature

6: 55 percent / tetrabutylammonium fluoride, glacial acetic acid / tetrahydrofuran / 2 h / Ambient temperature

7: 90 percent / oxalyl chloride, DMSO / CH₂Cl₂ / 1.) -60 deg C, 30 min, 2.) -20 deg C, 2 h

8: 1.) Et₃N, 2.) P(OEt)3, hydroquinone / 1.) xylene, 0 deg C, 30 min, 2.) xylene, 120 deg C, 4 h

With 2,6-dimethylpyridine; dirhodium tetraacetate; oxalyl dichloride; ammonium cerium(IV) nitrate; potassium tert-butylate; tetrabutyl ammonium fluoride; hydrogen; acetic acid; dimethyl sulfoxide; triethylamine; hydroquinone; triethyl phosphite; palladium on activated charcoal; In tetrahydrofuran; dichloromethane; ethyl acetate; acetonitrile;
DOI:10.1016/S0040-4020(97)01053-3

Reference yield:

: 190973-56-9
(3S,4R)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4-((1R,2S,3S)-2-hydroxy-3-nitrooxy-cyclohexyl)-azetidin-2-one

: 198402-09-4
(1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

Guidance literature:: Multi-step reaction with 7 steps

1: 79 percent / 2,6-lutidine / CH₂Cl₂ / 5 °C

2: 92 percent / H₂ / Pd/C / ethyl acetate / 2 h / 760 Torr

3: 72 percent / 2(OAc)>4 / CH₂Cl₂ / 6 h / Ambient temperature

4: 60 percent / potassium tert-butoxide / 2 h / -20 deg C -> room temperature

5: 55 percent / tetrabutylammonium fluoride, glacial acetic acid / tetrahydrofuran / 2 h / Ambient temperature

6: 90 percent / oxalyl chloride, DMSO / CH₂Cl₂ / 1.) -60 deg C, 30 min, 2.) -20 deg C, 2 h

7: 1.) Et₃N, 2.) P(OEt)3, hydroquinone / 1.) xylene, 0 deg C, 30 min, 2.) xylene, 120 deg C, 4 h

With 2,6-dimethylpyridine; dirhodium tetraacetate; oxalyl dichloride; potassium tert-butylate; tetrabutyl ammonium fluoride; hydrogen; acetic acid; dimethyl sulfoxide; triethylamine; hydroquinone; triethyl phosphite; palladium on activated charcoal; In tetrahydrofuran; dichloromethane; ethyl acetate;
DOI:10.1016/S0040-4020(97)01053-3

Reference yield:

: 190973-58-1
(1S,4aS,5S,8aR,8bR)-3,3-Di-tert-butyl-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-5-nitrooxy-octahydro-4-oxa-2a-aza-3-sila-cyclobuta[a]naphthalen-2-one

: 198402-09-4
(1S,5S,8aS,8bR)-5-Allyloxycarbonylmethoxy-1-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-1,2,5,6,7,8,8a,8b-octahydro-azeto[2,1-a]isoindole-4-carboxylic acid 4-tert-butyl-benzyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 92 percent / H₂ / Pd/C / ethyl acetate / 2 h / 760 Torr

2: 72 percent / 2(OAc)>4 / CH₂Cl₂ / 6 h / Ambient temperature

3: 60 percent / potassium tert-butoxide / 2 h / -20 deg C -> room temperature

4: 55 percent / tetrabutylammonium fluoride, glacial acetic acid / tetrahydrofuran / 2 h / Ambient temperature

5: 90 percent / oxalyl chloride, DMSO / CH₂Cl₂ / 1.) -60 deg C, 30 min, 2.) -20 deg C, 2 h

6: 1.) Et₃N, 2.) P(OEt)3, hydroquinone / 1.) xylene, 0 deg C, 30 min, 2.) xylene, 120 deg C, 4 h

With dirhodium tetraacetate; oxalyl dichloride; potassium tert-butylate; tetrabutyl ammonium fluoride; hydrogen; acetic acid; dimethyl sulfoxide; triethylamine; hydroquinone; triethyl phosphite; palladium on activated charcoal; In tetrahydrofuran; dichloromethane; ethyl acetate;
DOI:10.1016/S0040-4020(97)01053-3