tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

Base Information

Chemical Name:tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate
CAS No.:1380347-98-7
Molecular Formula:C₃₁H₃₂N₄O₄
Molecular Weight:524.619
Hs Code.:

Synonyms:tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

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Chemical Property of tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

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Technology Process of tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

There total 6 articles about tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate 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: 47.0%

: 1380347-98-7
tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

Guidance literature:

Reference yield:

: 1380347-97-6
3-benzyl-4-(bromomethyl)-1-methyl-5-nitro-1H-pyrazole

: 81477-94-3
N-(diphenylmethylene)glycine tert-butyl ester

: 1380347-98-7
tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

Guidance literature:: With cesiumhydroxide monohydrate; O-allyl-N-(9-anthracenylmethyl)cinchonidinium bromide; In dichloromethane; at -30 ℃; enantioselective reaction;
DOI:10.1016/j.bmcl.2013.02.039

Reference yield:

: 42754-59-6
2-(1-Methoxy-2-phenylethylidene)malononitrile

: 1380347-98-7
tert-butyl 3-(3-benzyl-1-methyl-5-nitro-1H-pyrazol-4-yl)-N-(diphenylmethylene)-L-alaninate

Guidance literature:: Multi-step reaction with 6 steps

1: ethanol / Reflux

2: sodium hydroxide; water / Reflux

3: sodium nitrite; tetrafluoroboric acid / water

4: dimethylsulfide borane complex / tetrahydrofuran / -20 °C / Reflux

5: carbon tetrabromide; triphenylphosphine / dichloromethane

6: O-allyl-N-(9-anthracenylmethyl)cinchonidinium bromide; cesiumhydroxide monohydrate / dichloromethane / -30 °C

With tetrafluoroboric acid; cesiumhydroxide monohydrate; carbon tetrabromide; dimethylsulfide borane complex; O-allyl-N-(9-anthracenylmethyl)cinchonidinium bromide; water; triphenylphosphine; sodium hydroxide; sodium nitrite; In tetrahydrofuran; ethanol; dichloromethane; water;
DOI:10.1016/j.bmcl.2013.02.039