(2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

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Chemical Name:(2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester
CAS No.:760968-59-0
Molecular Formula:C₂₂H₂₉NO₂Si
Molecular Weight:367.563
Hs Code.:

Synonyms:(2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

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Chemical Property of (2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

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Technology Process of (2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

There total 5 articles about (2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl 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: 79.0%

: 2351-34-0
1-chloro-1-methylsiletane

: 690211-37-1
(2R,5R)-5-but-3-enyl-2-ethynylpyrrolidine-1-carboxylic acid 1-benzyl ester

: 760968-59-0
(2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

Guidance literature:: (2R,5R)-5-but-3-enyl-2-ethynylpyrrolidine-1-carboxylic acid 1-benzyl ester; With potassium hexamethylsilazane; In tetrahydrofuran; toluene; at -78 ℃; for 0.166667h;

1-chloro-1-methylsiletane; In tetrahydrofuran; toluene; at -78 ℃; for 5h; Further stages.;
DOI:10.1016/j.tet.2004.06.021

Reference yield:

: 64700-65-8
methyl (2R)-pyroglutamate

: 760968-59-0
(2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: 100 percent / LiHMDS / tetrahydrofuran / -78 - 20 °C

2.1: Mg / tetrahydrofuran / 0.83 h / 20 °C

2.2: 73 percent / TMEDA / tetrahydrofuran / 1.5 h / -78 °C

3.1: BF₃*OEt₂; Ph₃SiH / CH₂Cl₂ / 2.5 h / -78 - 20 °C

3.2: DIBAL-H / toluene / 3 h / -78 °C

3.3: 826 mg / Cs₂CO₃ / toluene; propan-2-ol / 17 h / 20 °C

4.1: KHMDS / tetrahydrofuran; toluene / 0.17 h / -78 °C

4.2: 79 percent / tetrahydrofuran; toluene / 5 h / -78 °C

With boron trifluoride diethyl etherate; potassium hexamethylsilazane; magnesium; lithium hexamethyldisilazane; HSiPh₃; In tetrahydrofuran; dichloromethane; toluene;
DOI:10.1016/j.tet.2004.06.021

Reference yield:

: 501-53-1,94274-21-2
benzyl chloroformate

: 760968-59-0
(2R)-but-3-enyl-(5R)-2-(1-methylsiletan-1-ylethynyl)pyrrolidine-1-carboxylic acid benzyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: 100 percent / LiHMDS / tetrahydrofuran / -78 - 20 °C

2.1: Mg / tetrahydrofuran / 0.83 h / 20 °C

2.2: 73 percent / TMEDA / tetrahydrofuran / 1.5 h / -78 °C

3.1: BF₃*OEt₂; Ph₃SiH / CH₂Cl₂ / 2.5 h / -78 - 20 °C

3.2: DIBAL-H / toluene / 3 h / -78 °C

3.3: 826 mg / Cs₂CO₃ / toluene; propan-2-ol / 17 h / 20 °C

4.1: KHMDS / tetrahydrofuran; toluene / 0.17 h / -78 °C

4.2: 79 percent / tetrahydrofuran; toluene / 5 h / -78 °C

With boron trifluoride diethyl etherate; potassium hexamethylsilazane; magnesium; lithium hexamethyldisilazane; HSiPh₃; In tetrahydrofuran; dichloromethane; toluene;
DOI:10.1016/j.tet.2004.06.021