(S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

Base Information

Chemical Name:(S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate
CAS No.:1353757-50-2
Molecular Formula:C₂₀H₂₉NO₄S
Molecular Weight:379.521
Hs Code.:

Synonyms:(S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of (S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

Chemical Property:

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Technology Process of (S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

There total 10 articles about (S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate 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: 99.0%

: 1353757-65-9
(S)-tert-butyl 2-(pyrrolidin-1-yl)propanoate

: 13894-21-8
ethynyl p-tolyl sulfone

: 1353757-50-2
(S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

Guidance literature:: In ethyl acetate; at 0 ℃; for 4h; optical yield given as %ee; enantioselective reaction; Inert atmosphere;
DOI:10.1039/c1ob06074k

Reference yield: 87.0%

: 1353757-65-9
(S)-tert-butyl 2-(pyrrolidin-1-yl)propanoate

: 1353757-75-1
tert-butyl 3-phenyl-2-(pyrrolidin-1-yl)propanoate

: 1353757-50-2
(S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

: 1353757-76-2
(E)-tert-butyl 2-benzyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

Guidance literature:: In ethyl acetate; at 0 ℃; for 4h; optical yield given as %ee; enantioselective reaction; Inert atmosphere;
DOI:10.1039/c1ob06074k

Reference yield:

: 21691-50-9
Ala-OtBu

: 1353757-50-2
(S,E)-tert-butyl 2-methyl-2-(pyrrolidin-1-yl)-4-(p-toluenesulfonyl)but-3-enoate

Guidance literature:: Multi-step reaction with 2 steps

1: sodium hydrogencarbonate / acetonitrile / 23 h / Reflux; Inert atmosphere

2: ethyl acetate / 4 h / 0 °C / Inert atmosphere

With sodium hydrogencarbonate; In ethyl acetate; acetonitrile;
DOI:10.1039/c1ob06074k