5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

Base Information

Chemical Name:5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester
CAS No.:98714-67-1
Molecular Formula:C₂₂H₂₂N₂O₄
Molecular Weight:378.428
Hs Code.:

Synonyms:5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

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Chemical Property of 5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

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Technology Process of 5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

There total 3 articles about 5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl 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:

: 93102-13-7
bis-(ethoxycarbonyl)-1,1 propadiene

: 908093-98-1
diazodiphenylmethane

: 98714-69-3
4-Methyl-2-oxo-5,5-diphenyl-2,5-dihydro-furan-3-carboxylic acid ethyl ester

: 98714-68-2
2-Ethoxy-4-methylene-5,5-diphenyl-4,5-dihydro-furan-3-carboxylic acid ethyl ester

: 98714-67-1
5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

: 90-99-3
diphenylchloromethane

Guidance literature:: With 1,4-diaza-bicyclo[2.2.2]octane; In benzene; for 120h; Yield given. Yields of byproduct given; Ambient temperature;
DOI:10.1016/S0040-4020(01)96559-7

Reference yield:

: 28783-52-0
2-(1-chloro-ethylidene)-malonic acid diethyl ester

: 98714-67-1
5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

Guidance literature:: Multi-step reaction with 2 steps

1: Et₃N

2: DABCO / benzene / 120 h / Ambient temperature

With 1,4-diaza-bicyclo[2.2.2]octane; triethylamine; In benzene;
DOI:10.1016/S0040-4020(01)96559-7

Reference yield:

: 93102-13-7
bis-(ethoxycarbonyl)-1,1 propadiene

: 908093-98-1
diazodiphenylmethane

: 98714-69-3
4-Methyl-2-oxo-5,5-diphenyl-2,5-dihydro-furan-3-carboxylic acid ethyl ester

: 98714-68-2
2-Ethoxy-4-methylene-5,5-diphenyl-4,5-dihydro-furan-3-carboxylic acid ethyl ester

: 98714-67-1
5-Methylene-3,3-diphenyl-3,5-dihydro-pyrazole-4,4-dicarboxylic acid diethyl ester

Guidance literature:: With 1,4-diaza-bicyclo[2.2.2]octane; In benzene; for 120h; Ambient temperature; investigation of the stability of the cycloadditionproducts;
DOI:10.1016/S0040-4020(01)96559-7