[(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid allyl ester

Base Information

• Chemical Name: [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid allyl ester
• CAS No.: 190974-40-4
• Molecular Formula: C₄₁H₅₂NO₆PSi
• Molecular Weight: 713.926
• Mol file: 190974-40-4.mol

Synonyms:

Chemical Property of [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid allyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid allyl ester

There total 6 articles about [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid allyl 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:

formaldehyd (50-00-0,30525-89-4,61233-19-0) + [(3S,4R)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-4-((R)-2-oxo-cyclohexyl)-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid allyl ester (190974-26-6) → [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid allyl ester (190974-40-4) + [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3R)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid allyl ester

Guidance literature:

With lithium hexamethyldisilazane; In tetrahydrofuran; at -78 ℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

DOI:10.1016/S0040-4039(97)00665-5

Reference yield:

allyl 2-oxoacetate (64370-42-9) → [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid allyl ester (190974-40-4)

Guidance literature:

Multi-step reaction with 4 steps

1: toluene / Heating

2: thionyl chloride, 2,6-lutidine

3: 2,6-lutidine

4: LiHMDS / tetrahydrofuran / -78 °C

With 2,6-dimethylpyridine; thionyl chloride; lithium hexamethyldisilazane; In tetrahydrofuran; toluene;

DOI:10.1016/S0040-4039(97)00665-5

Reference yield:

(3S,4R)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4-((R)-2-oxo-cyclohexyl)-azetidin-2-one (135297-16-4) → [(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-((1R,3S)-3-hydroxymethyl-2-oxo-cyclohexyl)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid allyl ester (190974-40-4)

Guidance literature:

Multi-step reaction with 4 steps

1: toluene / Heating

2: thionyl chloride, 2,6-lutidine

3: 2,6-lutidine

4: LiHMDS / tetrahydrofuran / -78 °C

With 2,6-dimethylpyridine; thionyl chloride; lithium hexamethyldisilazane; In tetrahydrofuran; toluene;

DOI:10.1016/S0040-4039(97)00665-5

upstream raw materials:

formaldehyd

[(3S,4R)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-oxo-4-((R)-2-oxo-cyclohexyl)-azetidin-1-yl]-(triphenyl-λ⁵-phosphanylidene)-acetic acid allyl ester

allyl 2-oxoacetate

triphenylphosphine