(5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

Base Information

Chemical Name:(5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester
CAS No.:111981-42-1
Molecular Formula:C₂₄H₃₁F₂NO₄Si
Molecular Weight:463.597
Hs Code.:

Synonyms:(5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

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Chemical Property of (5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

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Technology Process of (5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

There total 8 articles about (5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic 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: 42.0%

: 111969-48-3,112020-47-0
[(2S,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-(1,1-difluoro-2-oxo-2-phenyl-ethyl)-4-oxo-azetidin-1-yl]-chloro-acetic acid allyl ester

: 111981-42-1
(5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

Guidance literature:: With 2,6-dimethylpyridine; triphenylphosphine; In tetrahydrofuran; at 40 ℃; for 18h;

Reference yield:

: phenylmagnesium bromide

: 111981-42-1
(5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: 68 percent

2: Zn / acetonitrile / 60 °C

3: 20 percent / TiCl₄ / CH₂Cl₂ / 24 h / Heating

4: 62 percent / Et₃N, 3A molecular sieve / toluene / 18 h / Ambient temperature

5: 63 percent / SO₂Cl₂, 2,6-lutidine / tetrahydrofuran / 0.5 h / -10 °C

6: 42 percent / triphenylphosphine, 2,6-lutidine / tetrahydrofuran / 18 h / 40 °C

With 2,6-dimethylpyridine; sulfuryl dichloride; 3 A molecular sieve; titanium tetrachloride; triethylamine; triphenylphosphine; zinc; In tetrahydrofuran; dichloromethane; toluene; acetonitrile;

Reference yield:

: 384-67-8
2-chloro-2,2-difluoroacetophenone

: 111981-42-1
(5S,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4,4-difluoro-7-oxo-3-phenyl-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: Zn / acetonitrile / 60 °C

2: 20 percent / TiCl₄ / CH₂Cl₂ / 24 h / Heating

3: 62 percent / Et₃N, 3A molecular sieve / toluene / 18 h / Ambient temperature

4: 63 percent / SO₂Cl₂, 2,6-lutidine / tetrahydrofuran / 0.5 h / -10 °C

5: 42 percent / triphenylphosphine, 2,6-lutidine / tetrahydrofuran / 18 h / 40 °C

With 2,6-dimethylpyridine; sulfuryl dichloride; 3 A molecular sieve; titanium tetrachloride; triethylamine; triphenylphosphine; zinc; In tetrahydrofuran; dichloromethane; toluene; acetonitrile;