4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

Base Information

Chemical Name:4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole
CAS No.:1357363-01-9
Molecular Formula:C₂₁H₂₂N₂O₂
Molecular Weight:334.418
Hs Code.:

Synonyms:4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

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Chemical Property of 4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

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Technology Process of 4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

There total 3 articles about 4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole 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: 28.0%

: 1044856-44-1
2-(1-phenyl-1H-pyrazol-5-yl)ethanol

: 19790-60-4
3-Benzyloxypropanal

: 1357363-01-9
4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

Guidance literature:: DOI:10.1055/s-0031-1289607

Reference yield:

: 4799-68-2
3-benzyloxypropan-1-ol

: 1357363-01-9
4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

Guidance literature:: Multi-step reaction with 2 steps

1: Dess-Martin periodane / dichloromethane / 3 h / 0 - 15 °C

With Dess-Martin periodane; In dichloromethane; 2: oxa-Pictet-Spengler reaction;
DOI:10.1055/s-0031-1289607

Reference yield:

: 1126-00-7
1-phenylpyrazole

: 1357363-01-9
4-[2-(benzyloxy)ethyl]-1-phenyl-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole

Guidance literature:: Multi-step reaction with 2 steps

1.1: n-butyllithium / tetrahydrofuran / 1.5 h / -78 °C

1.2: 3 h / -78 - 20 °C

1.3: 16 h / 100 °C

With n-butyllithium; In tetrahydrofuran; 2.1: oxa-Pictet-Spengler reaction;
DOI:10.1055/s-0031-1289607