diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate

Base Information

Chemical Name:diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate
CAS No.:439100-89-7
Molecular Formula:C₂₂H₂₈ClN₃O₇
Molecular Weight:481.933
Hs Code.:

Synonyms:diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate

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Chemical Property of diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate

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Technology Process of diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate

There total 2 articles about diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate 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: 83.0%

: 408346-61-2
2-(N-tert-butoxycarbonylimino)malonic acid diethyl ester

: 1-benzyloxy-5-chloro-4-iodopyrazole

: 439100-89-7
diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate

Guidance literature:: 1-benzyloxy-5-chloro-4-iodopyrazole; With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 0.2h;

2-(N-tert-butoxycarbonylimino)malonic acid diethyl ester; In tetrahydrofuran; at -78 ℃; for 1h;
DOI:10.1016/S0040-4020(02)00021-2

Reference yield:

: 229171-07-7
1-(benzyloxy)-4-iodo-1H-pyrazole

: 439100-89-7
diethyl 2-(1-benzyloxy-5-chloropyrazol-4-yl)-2-tert-butoxycarbonylamino-malonate

Guidance literature:: Multi-step reaction with 2 steps

1.1: lithium diisopropylamide / tetrahydrofuran / 0.08 h / -78 °C

1.2: 98 percent / hexachloroethane / tetrahydrofuran / 1 h / -78 °C

2.1: n-butyl lithium / tetrahydrofuran; hexane / 0.2 h / -78 °C

2.2: 83 percent / tetrahydrofuran / 1 h / -78 °C

With n-butyllithium; lithium diisopropyl amide; In tetrahydrofuran; hexane;
DOI:10.1016/S0040-4020(02)00021-2