(3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

Base Information

Chemical Name:(3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)
CAS No.:222533-66-6
Molecular Formula:C₂₆H₂₄N₂O₄
Molecular Weight:428.488
Hs Code.:

Synonyms:(3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

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Chemical Property of (3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

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Technology Process of (3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

There total 7 articles about (3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine) 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:

: 7135-32-2
1-benzylindolin-2-one

: 222533-66-6
(3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

Guidance literature:: Multi-step reaction with 7 steps

1: 1.) n-BuLi / 1.) THF, hexane, 2.) THF, hexane

2: 1.) n-BuLi / 1.) ether, hexane, -78 -> 0 deg C, 2.) ether, hexane, -78 -> 0 deg C

3: 97 percent / NaBH₄ / dioxane; methanol

4: 87 percent / sodium nitrite, acetic acid / dimethylsulfoxide

5: 1.) triethylamine, diphenylphosphoryl azide / 1.) toluene, reflux, 2.) toluene, reflux

6: 1.) ozone, 2.) dimethyl sulfide / 1.) ethanol, -78 deg C, 2.) ethanol, 24 h

7: 47 mg / NaBH₄ / methanol / 1 h

With sodium tetrahydroborate; n-butyllithium; dimethylsulfide; diphenylphosphoranyl azide; ozone; acetic acid; triethylamine; sodium nitrite; In 1,4-dioxane; methanol; dimethyl sulfoxide;
DOI:10.1021/jo981577q

Reference yield:

: 222533-60-0
1-benzyl-3-(3-methylbut-2-enyl)-1,3-dihydroindol-2-one

: 222533-66-6
(3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

Guidance literature:: Multi-step reaction with 6 steps

1: 1.) n-BuLi / 1.) ether, hexane, -78 -> 0 deg C, 2.) ether, hexane, -78 -> 0 deg C

2: 97 percent / NaBH₄ / dioxane; methanol

3: 87 percent / sodium nitrite, acetic acid / dimethylsulfoxide

4: 1.) triethylamine, diphenylphosphoryl azide / 1.) toluene, reflux, 2.) toluene, reflux

5: 1.) ozone, 2.) dimethyl sulfide / 1.) ethanol, -78 deg C, 2.) ethanol, 24 h

6: 47 mg / NaBH₄ / methanol / 1 h

With sodium tetrahydroborate; n-butyllithium; dimethylsulfide; diphenylphosphoranyl azide; ozone; acetic acid; triethylamine; sodium nitrite; In 1,4-dioxane; methanol; dimethyl sulfoxide;
DOI:10.1021/jo981577q

Reference yield:

: 222533-61-1
(S)-1-benzyl-3-(3-methylbut-2-enyl)-3-(2-nitrovinyl)-2-oxindole

: 222533-66-6
(3R)-1-benzyl-1'-benzyloxycarbonyl-2'-hydroxy-2-oxospiro(3H-indole-3,4'-pyrrolidine)

Guidance literature:: Multi-step reaction with 5 steps

1: 97 percent / NaBH₄ / dioxane; methanol

2: 87 percent / sodium nitrite, acetic acid / dimethylsulfoxide

3: 1.) triethylamine, diphenylphosphoryl azide / 1.) toluene, reflux, 2.) toluene, reflux

4: 1.) ozone, 2.) dimethyl sulfide / 1.) ethanol, -78 deg C, 2.) ethanol, 24 h

5: 47 mg / NaBH₄ / methanol / 1 h

With sodium tetrahydroborate; dimethylsulfide; diphenylphosphoranyl azide; ozone; acetic acid; triethylamine; sodium nitrite; In 1,4-dioxane; methanol; dimethyl sulfoxide;
DOI:10.1021/jo981577q