(1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

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Chemical Name:(1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester
CAS No.:74930-25-9
Molecular Formula:C₂₅H₂₇N₃O₅
Molecular Weight:449.506
Hs Code.:

Synonyms:(1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

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Chemical Property of (1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

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Technology Process of (1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

There total 6 articles about (1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl 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: 59.0%

: 74930-17-9
(S)-3-Methoxy-2-methyl-5,6-di-p-tolyl-2,5-dihydro-[1,2,4]triazine

: 762-42-5
dimethyl acetylenedicarboxylate

: 74930-25-9
(1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

Guidance literature:: In toluene; at 110 ℃; for 16h;
DOI:10.1021/jo01311a007

Reference yield: 59.0%

: 74930-17-9
(S)-3-Methoxy-2-methyl-5,6-di-p-tolyl-2,5-dihydro-[1,2,4]triazine

: 762-42-5
dimethyl acetylenedicarboxylate

: 74930-25-9
(3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

Guidance literature:: In toluene; at 110 ℃; for 16h;
DOI:10.1016/S0040-4039(00)92766-7

Reference yield:

: 3457-48-5
1,2-di(4-methylphenyl)-1,2-ethanedione

: 74930-25-9
(1S,3aS,6R,6aR)-6a-Methoxy-1-methyl-3,6-di-p-tolyl-6,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3a,4-dicarboxylic acid dimethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 84 percent / sodium bicarbonate / methanol / 12 h / Ambient temperature

2: 69 percent / sodium methoxide / methanol / 1.) room temp., 24 h; 2.) 60 deg C, 8 h

3: 88 percent / sodium borohydride / tetrahydrofuran; methanol / 24 h / Ambient temperature

4: 1) sodium hydride / 1) DMF, 15 min; 2) room temp., 3 h

5: 59 percent / toluene / 16 h / 110 °C

With sodium tetrahydroborate; sodium methylate; sodium hydride; sodium hydrogencarbonate; In tetrahydrofuran; methanol; toluene;
DOI:10.1021/jo01311a007