(2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

Base Information

Chemical Name:(2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester
CAS No.:683206-61-3
Molecular Formula:C₂₅H₃₄N₂O₅S
Molecular Weight:474.621
Hs Code.:

Synonyms:(2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

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Chemical Property of (2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

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Technology Process of (2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

There total 7 articles about (2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-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: 90.0%

: 683205-69-8
(2R,3S)-2-[4-(2-Ethyl-benzyloxy)-benzenesulfonylamino]-3-(2-hydroxy-ethylamino)-butyric acid tert-butyl ester

: 683206-61-3
(2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

Guidance literature:: With triphenylphosphine; diethylazodicarboxylate;
DOI:10.1016/S0960-894X(03)00666-8

Reference yield:

: 79218-15-8
tert-butyl (E)-crotonate

: 683206-61-3
(2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 7 steps

1: 60 percent / (DHQD)2PHAL; K₂OsO₂(OH)4; t-BuOCl

2: 78 percent / Et₃N / CH₂Cl₂

3: KO-t-Bu

4: 86 percent / H₂ / Pd/C / ethanol

5: 96 percent / Et₃N / dimethylformamide

6: CH₂Cl₂

7: 90 percent / Ph₃P; DEAD

With potassium dioxotetrahydroxoosmate(VI); tert-butylhypochlorite; potassium tert-butylate; hydrogen; 1,4-bis(9-O-dihydroquinidine)phthalazine; triethylamine; triphenylphosphine; diethylazodicarboxylate; palladium on activated charcoal; In ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0960-894X(03)00666-8

Reference yield:

: 203064-70-4
(2R,3R)-N-benzyloxycarbonyl-2-(tert-butoxycarbonyl)-3-methylaziridine

: 683206-61-3
(2R,3S)-1-[4-(2-Ethyl-benzyloxy)-benzenesulfonyl]-3-methyl-piperazine-2-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 86 percent / H₂ / Pd/C / ethanol

2: 96 percent / Et₃N / dimethylformamide

3: CH₂Cl₂

4: 90 percent / Ph₃P; DEAD

With hydrogen; triethylamine; triphenylphosphine; diethylazodicarboxylate; palladium on activated charcoal; In ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0960-894X(03)00666-8