(2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

Base Information

Chemical Name:(2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester
CAS No.:159516-87-7
Molecular Formula:C₁₈H₂₇NO₄
Molecular Weight:321.417
Hs Code.:

Synonyms:(2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

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Chemical Property of (2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

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Technology Process of (2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

There total 17 articles about (2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl 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:

: 24424-99-5
di-tert-butyl dicarbonate

: 159516-87-7
(2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 7 steps

1: 98 percent / 4-dimethylaminopyridine / acetonitrile; triethylamine / 3 h / Ambient temperature

2: diisobutylaluminium hydride / hexane; tetrahydrofuran / -78 deg C, 1 h, then 0 deg C, 2 h

3: pyridinium p-toluenesulfonate / 12 h / Ambient temperature

4: NaH / paraffin; dimethylformamide / 1 h / Ambient temperature

5: 68 percent / boron trifluoride etherate / CH₂Cl₂ / 1 h / -78 °C

6: 62 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C

7: 1.) potassium carbonate; 2.) sodium borohydride / 1.) methanol, reflux, 2 h; 2.) methanol, room temp., 30 min

With dmap; sodium tetrahydroborate; boron trifluoride diethyl etherate; pyridinium p-toluenesulfonate; sodium hydride; diisobutylaluminium hydride; potassium carbonate; In tetrahydrofuran; hexane; dichloromethane; triethylamine; N,N-dimethyl-formamide; toluene; acetonitrile; paraffin;
DOI:10.1016/S0040-4020(01)80643-8

Reference yield:

: 6893-26-1,21675-62-7,23009-64-5,25104-13-6,84960-48-5,25513-46-6
D-Glutamic acid

: 159516-87-7
(2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 11 steps

1: 39 percent / 2M sodium hydroxide, sodium borohydride / H₂O / 3.5 h / Ambient temperature

2: 83 percent / thionyl chloride / 3 h / Heating

3: 92 percent / lithium chloride, sodium borohydride / ethanol; tetrahydrofuran / 2 h / Ambient temperature

4: 96 percent / NaH / dimethylformamide; paraffin / 1 h / Ambient temperature

5: 86 percent / ammonium cerium(IV) nitrate / acetonitrile; H₂O / 2 h / Ambient temperature

6: 96 percent / 4-dimethylaminopyridine / acetonitrile; triethylamine / 3 h / Ambient temperature

7: diisobutylaluminium hydride / hexane; tetrahydrofuran / 1 h / -78 °C

8: pyridinium p-toluenesulfonate / 3 h / Ambient temperature

9: 68 percent / boron trifluoride etherate / CH₂Cl₂ / 1 h / -78 °C

10: 62 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C

11: 1.) potassium carbonate; 2.) sodium borohydride / 1.) methanol, reflux, 2 h; 2.) methanol, room temp., 30 min

With dmap; sodium hydroxide; sodium tetrahydroborate; thionyl chloride; ammonium cerium(IV) nitrate; boron trifluoride diethyl etherate; pyridinium p-toluenesulfonate; sodium hydride; diisobutylaluminium hydride; potassium carbonate; lithium chloride; In tetrahydrofuran; ethanol; hexane; dichloromethane; water; triethylamine; N,N-dimethyl-formamide; toluene; acetonitrile; paraffin;
DOI:10.1016/S0040-4020(01)80643-8

Reference yield:

: 128811-48-3
1‐(tert‐butyl) 2‐methyl (R)‐5‐oxopyrrolidine‐1,2‐dicarboxylate

: 159516-87-7
(2R,5S)-2-Benzyloxymethyl-5-hydroxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: diisobutylaluminium hydride / hexane; tetrahydrofuran / -78 deg C, 1 h, then 0 deg C, 2 h

2: pyridinium p-toluenesulfonate / 12 h / Ambient temperature

3: NaH / paraffin; dimethylformamide / 1 h / Ambient temperature

4: 68 percent / boron trifluoride etherate / CH₂Cl₂ / 1 h / -78 °C

5: 62 percent / diisobutylaluminium hydride / toluene / 1 h / -78 °C

6: 1.) potassium carbonate; 2.) sodium borohydride / 1.) methanol, reflux, 2 h; 2.) methanol, room temp., 30 min

With sodium tetrahydroborate; boron trifluoride diethyl etherate; pyridinium p-toluenesulfonate; sodium hydride; diisobutylaluminium hydride; potassium carbonate; In tetrahydrofuran; hexane; dichloromethane; N,N-dimethyl-formamide; toluene; paraffin;
DOI:10.1016/S0040-4020(01)80643-8