(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

Base Information

Chemical Name:(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester
CAS No.:405517-66-0
Molecular Formula:C₃₂H₄₂F₃NO₅Si
Molecular Weight:605.77
Hs Code.:

(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

Synonyms:(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

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Chemical Property of (2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

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Technology Process of (2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

There total 9 articles about (2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl 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: 95.0%

: 75-77-4
chloro-trimethyl-silane

: 405517-63-7
(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-3-hydroxy-2-phenyl-piperidine-1-carboxylic acid tert-butyl ester

: 405517-66-0
(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

Guidance literature:: With lithium hexamethyldisilazane; In tetrahydrofuran; at 20 ℃; for 1h;
DOI:10.1021/jo0157472

Reference yield:

: 208831-25-8
1-(cyclopropyloxy)-2-iodo-4-(trifluoromethoxy)benzene

: 405517-66-0
(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 7 steps

1.1: magnesium; methyl tert-butyl ether / 3 h / Heating

1.2: methyl tert-butyl ether / -20 - 5 °C

2.1: KOt-Bu / tetrahydrofuran / -20 - 20 °C

3.1: 5.48 g / LiI / various solvent(s) / 30 h / 100 °C

4.1: DIEA / CH₂Cl₂ / -40 °C

5.1: LiBr / dimethylformamide / 16 h / 10 °C

6.1: 99 percent / zinc / dimethylformamide / 10 - 15 °C

7.1: 95 percent / LiHMDS / tetrahydrofuran / 1 h / 20 °C

With tert-butyl methyl ether; potassium tert-butylate; magnesium; N-ethyl-N,N-diisopropylamine; lithium bromide; lithium iodide; lithium hexamethyldisilazane; zinc; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jo0157472

Reference yield:

: 405517-55-7
1-(2-chloroethoxy)-2-iodo-4-trifluoromethoxybenzene

: 405517-66-0
(2R,3S)-3-[2-(2-Cyclopropoxy-5-trifluoromethoxy-phenyl)-allyl]-2-phenyl-3-trimethylsilanyloxy-piperidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 9 steps

1.1: 80 percent / KOt-Bu / tetrahydrofuran / 20 h / 20 °C

2.1: 99 percent / Et₂Zn / 1,2-dichloro-ethane / -5 - 20 °C

3.1: magnesium; methyl tert-butyl ether / 3 h / Heating

3.2: methyl tert-butyl ether / -20 - 5 °C

4.1: KOt-Bu / tetrahydrofuran / -20 - 20 °C

5.1: 5.48 g / LiI / various solvent(s) / 30 h / 100 °C

6.1: DIEA / CH₂Cl₂ / -40 °C

7.1: LiBr / dimethylformamide / 16 h / 10 °C

8.1: 99 percent / zinc / dimethylformamide / 10 - 15 °C

9.1: 95 percent / LiHMDS / tetrahydrofuran / 1 h / 20 °C

With tert-butyl methyl ether; potassium tert-butylate; diethylzinc; magnesium; N-ethyl-N,N-diisopropylamine; lithium bromide; lithium iodide; lithium hexamethyldisilazane; zinc; In tetrahydrofuran; dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide;
DOI:10.1021/jo0157472