1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

Base Information

Chemical Name:1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol
CAS No.:1071835-79-4
Molecular Formula:C₁₈H₂₃N₃O₂
Molecular Weight:313.4
Hs Code.:

Synonyms:1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

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Chemical Property of 1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

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Technology Process of 1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

There total 5 articles about 1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol 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: 77.0%

: 1071835-99-8
2-[4-(1-benzyl-4-hydroxypiperidin-4-yl)-1-methylpyrazol-5-yl]acetaldehyde dimethyl acetal

: 1071835-79-4
1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

Guidance literature:: 2-[4-(1-benzyl-4-hydroxypiperidin-4-yl)-1-methylpyrazol-5-yl]acetaldehyde dimethyl acetal; With hydrogenchloride; In water; at 20 ℃; for 47h;

With sodium hydroxide; In water;

Reference yield:

: 3612-20-2
1-phenylmethyl-4-piperidone

: 1071835-79-4
1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

Guidance literature:: Multi-step reaction with 2 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere

1.2: 21.5 h / -78 - 20 °C / Inert atmosphere

2.1: hydrogenchloride / water / 47 h / 20 °C

With hydrogenchloride; n-butyllithium; In tetrahydrofuran; hexane; water;
DOI:10.1021/jm200585k

Reference yield:

: 1071835-98-7
2-(4-bromo-1-methylpyrazol-5-yl)acetaldehyde dimethyl acetal

: 1071835-79-4
1-benzyl-1'-methyl-6',7'-dihydro-1'H-spiro[piperidine-4,4'-pyrano[4,3-c]pyrazol]-6'-ol

Guidance literature:: Multi-step reaction with 2 steps

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / -78 °C / Inert atmosphere

1.2: 21.5 h / -78 - 20 °C / Inert atmosphere

2.1: hydrogenchloride / water / 47 h / 20 °C

With hydrogenchloride; n-butyllithium; In tetrahydrofuran; hexane; water;
DOI:10.1021/jm200585k