ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

Base Information

Chemical Name:ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate
CAS No.:870679-51-9
Molecular Formula:C₂₂H₂₀Cl₂N₂O₂
Molecular Weight:415.319
Hs Code.:

Synonyms:ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

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Chemical Property of ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

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Technology Process of ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

There total 5 articles about ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate 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: 63.0%

: 870679-55-3
ethyl γ-(7-methyl-1-oxo-2,3,4,5-tetrahydrobenzocyclohepten-2-yl)-α-oxoacetate

: 5446-18-4
2,4-dichlorophenyl hydrazine hydrochloride

: 870679-51-9
ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

Guidance literature:: In ethanol; for 3h; Heating;
DOI:10.1021/jm050317f

Reference yield:

: 870679-58-6
5-m-tolyl-pent-4-enoic acid

: 870679-51-9
ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1: 96 percent / H₂ / PtO₂ / ethanol / 2 h / 20 °C

2: 62 percent / polyphosphoric acid / 1 h / 130 °C

3: 96 percent / NaOEt / ethanol / 9 h / 20 °C

4: 63 percent / ethanol / 3 h / Heating

With PPA; hydrogen; sodium ethanolate; platinum(IV) oxide; In ethanol;
DOI:10.1021/jm050317f

Reference yield:

: 17857-14-6
(3-carboxypropyl)(triphenyl)phosphonium bromide

: 870679-51-9
ethyl 8-methyl-1-(2',4'-dichlorophenyl)-1,4,5,6-tetrahydrobenzo[6,7]cyclohepta[1,2-c]pyrazole-3-carboxylate

Guidance literature:: Multi-step reaction with 5 steps

1.1: t-BuOK / dimethylsulfoxide / 0.33 h / 20 °C

1.2: 69 percent / dimethylsulfoxide / 4 h / 20 °C

2.1: 96 percent / H₂ / PtO₂ / ethanol / 2 h / 20 °C

3.1: 62 percent / polyphosphoric acid / 1 h / 130 °C

4.1: 96 percent / NaOEt / ethanol / 9 h / 20 °C

5.1: 63 percent / ethanol / 3 h / Heating

With PPA; potassium tert-butylate; hydrogen; sodium ethanolate; platinum(IV) oxide; In ethanol; dimethyl sulfoxide;
DOI:10.1021/jm050317f