9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one

Base Information

• Chemical Name: 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one
• CAS No.: 896718-27-7
• Molecular Formula: C₂₃H₃₅NO₃Si
• Molecular Weight: 401.621
• Mol file: 896718-27-7.mol

Synonyms:9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one

Chemical Property of 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one

There total 3 articles about 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one 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: 79.0%

(S)-2-But-3-enyl-2-(tert-butyl-dimethyl-silanyloxy)-3-((S)-1-isopropyl-allyl)-5-phenyl-oxazolidin-4-one (896718-21-1) → 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one (896718-27-7)

Guidance literature:

Grubbs catalyst first generation; In dichloromethane;

DOI:10.1016/j.tetlet.2006.03.152

Reference yield:

Pent-4-enoic acid (S)-((S)-1-isopropyl-allylcarbamoyl)-phenyl-methyl ester → 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one (896718-27-7)

Guidance literature:

Multi-step reaction with 2 steps

1: 83 percent / 2,6-lutidine / 0 °C

2: 79 percent / (PCy₃)2Ru=CHPh(Cl₂) / CH₂Cl₂

With 2,6-dimethylpyridine; Grubbs catalyst first generation; In dichloromethane;

DOI:10.1016/j.tetlet.2006.03.152

Reference yield:

t-butyldimethylsiyl triflate (69739-34-0) → 9a-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-2-phenyl-5,8,9,9a-tetrahydro-oxazolo[3,2-a]azepin-3-one (896718-27-7)

Guidance literature:

Multi-step reaction with 2 steps

1: 83 percent / 2,6-lutidine / 0 °C

2: 79 percent / (PCy₃)2Ru=CHPh(Cl₂) / CH₂Cl₂

With 2,6-dimethylpyridine; Grubbs catalyst first generation; In dichloromethane;

DOI:10.1016/j.tetlet.2006.03.152

upstream raw materials:

(S)-2-But-3-enyl-2-(tert-butyl-dimethyl-silanyloxy)-3-((S)-1-isopropyl-allyl)-5-phenyl-oxazolidin-4-one

t-butyldimethylsiyl triflate

Downstream raw materials:

7-isopropyl-hexahydro-azepin-2-one