(3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

Base Information

Chemical Name:(3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one
CAS No.:194535-48-3
Molecular Formula:C₂₅H₄₉NO₄Si₂
Molecular Weight:483.839
Hs Code.:

Synonyms:(3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

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Chemical Property of (3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

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Technology Process of (3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

There total 8 articles about (3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-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: 95.0%

: 194535-47-2
((1R,4R)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-3-oxo-cyclohexyl)-acetaldehyde

: 194535-48-3
(3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

Guidance literature:: With 9-borabicyclo[3.3.1]nonane dimer; In tetrahydrofuran; for 12h;
DOI:10.1016/S0960-894X(97)00326-0

Reference yield:

: 930-68-7
cyclohexenone

: 194535-48-3
(3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

Guidance literature:: Multi-step reaction with 7 steps

1: 1.) LDA / 1.) THF, -78 deg C, 30 min, 2.) -78 deg C to room temperature, 2 h

2: 1.) NaH / 1.) THF, -20 deg C, 30 min, 2.) -20 deg C, 2 h

3: CH₂Cl₂ / 0.5 h / 0 °C

4: Pd(OAc)2, PPh₃, formic acid / ethyl acetate / 2 h / Heating

5: 1.) n-BuLi / 1.) THF, -78 deg C, 30 min, 2.) -78 deg C, 1 h

6: 1.) O₃, 2.) Me₂S / 1.) CH₂Cl₂, -78 deg C, 2.) -78 deg C to room temperature, 1 h

7: 95 percent / 9-BBN / tetrahydrofuran / 12 h

With palladium diacetate; 9-borabicyclo[3.3.1]nonane dimer; n-butyllithium; formic acid; dimethylsulfide; sodium hydride; ozone; triphenylphosphine; lithium diisopropyl amide; In tetrahydrofuran; dichloromethane; ethyl acetate;
DOI:10.1016/S0960-894X(97)00326-0

Reference yield:

: 76899-07-5,78963-47-0,78963-48-1,78963-60-7,80951-41-3,81275-02-7,85647-75-2,85954-95-6,92217-74-8,104527-11-9,76855-69-1
(3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one

: 194535-48-3
(3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[(1R,4R)-4-(2-hydroxy-ethyl)-2-oxo-cyclohexyl]-azetidin-2-one

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) NaH / 1.) THF, -20 deg C, 30 min, 2.) -20 deg C, 2 h

2: CH₂Cl₂ / 0.5 h / 0 °C

3: Pd(OAc)2, PPh₃, formic acid / ethyl acetate / 2 h / Heating

4: 1.) n-BuLi / 1.) THF, -78 deg C, 30 min, 2.) -78 deg C, 1 h

5: 1.) O₃, 2.) Me₂S / 1.) CH₂Cl₂, -78 deg C, 2.) -78 deg C to room temperature, 1 h

6: 95 percent / 9-BBN / tetrahydrofuran / 12 h

With palladium diacetate; 9-borabicyclo[3.3.1]nonane dimer; n-butyllithium; formic acid; dimethylsulfide; sodium hydride; ozone; triphenylphosphine; In tetrahydrofuran; dichloromethane; ethyl acetate;
DOI:10.1016/S0960-894X(97)00326-0