3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

Base Information

Chemical Name:3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on
CAS No.:950187-54-9
Molecular Formula:C₂₆H₄₃NO₇Si
Molecular Weight:509.715
Hs Code.:

Synonyms:3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

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Chemical Property of 3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

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Technology Process of 3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

There total 3 articles about 3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on 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: 82.6%

: 950187-52-7
3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R,3S)-3-butoxy-2-oxo-cyclohexyl)-azetidin-2-one

: 74503-07-4
allyl oxalyl chloride

: 950187-54-9
3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

Guidance literature:: With triethylamine; In tetrahydrofuran; at -5 - 20 ℃; for 2.5h;
DOI:10.1021/jm0703237

Reference yield:

: 33371-99-2
α-Butoxycyclohexanon

: 950187-54-9
3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

Guidance literature:: Multi-step reaction with 2 steps

1.1: SnCl₄ / CH₂Cl₂ / 0.25 h / -20 °C

1.2: CH₂Cl₂ / 1 h / 0 °C

1.3: 42.2 percent / ethyl diisopropylamine / CH₂Cl₂ / 1 h / 0 °C

2.1: 82.6 percent / Et₃N / tetrahydrofuran / 2.5 h / -5 - 20 °C

With tin(IV) chloride; triethylamine; In tetrahydrofuran; dichloromethane;
DOI:10.1021/jm0703237

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

: 950187-54-9
3-(S)-[1-(R)-(tert-butyldimethylsilyloxy)-ethyl]-4-(R)-((1R)-3-(S)-butoxy-2-oxo-cyclohexyl)-allyloxalyl-azetidin-2-on

Guidance literature:: Multi-step reaction with 2 steps

1.1: SnCl₄ / CH₂Cl₂ / 0.25 h / -20 °C

1.2: CH₂Cl₂ / 1 h / 0 °C

1.3: 42.2 percent / ethyl diisopropylamine / CH₂Cl₂ / 1 h / 0 °C

2.1: 82.6 percent / Et₃N / tetrahydrofuran / 2.5 h / -5 - 20 °C

With tin(IV) chloride; triethylamine; In tetrahydrofuran; dichloromethane;
DOI:10.1021/jm0703237