(2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

Base Information

Chemical Name:(2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester
CAS No.:339161-06-7
Molecular Formula:C₂₆H₂₄N₂O₃
Molecular Weight:412.488
Hs Code.:

Synonyms:(2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

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Chemical Property of (2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

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Technology Process of (2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

There total 4 articles about (2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl 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: 93.0%

: 7677-24-9
trimethylsilyl cyanide

: 213687-55-9
(3S,5R,6S)-2-acetoxy-4-(benzyloxycarbonyl)-5,6-diphenyl-3-methyl-2,3,5,6-tetrahydro-4H-1,4-oxazine

: 339161-06-7
(2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

Guidance literature:: With boron trifluoride diethyl etherate; In acetonitrile; at -20 ℃; for 0.5h;
DOI:10.1021/ja0042332

Reference yield:

: (3R,5R,6S)-4-benzyloxycarbonyl-5,6-diphenyl-3-methyl-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one

: 339161-06-7
(2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 82 percent / KN(SiMe₃)2; 18-crown-6; CO₂ / tetrahydrofuran; toluene

2: DIBAL-H / CH₂Cl₂; toluene / 0.67 h / -78 °C

3: Et₃N; DMAP / CH₂Cl₂ / 8 h / 20 °C

4: 93 percent / BF₃*Et₂O / acetonitrile / 0.5 h / -20 °C

With dmap; 18-crown-6 ether; carbon dioxide; boron trifluoride diethyl etherate; potassium hexamethylsilazane; diisobutylaluminium hydride; triethylamine; In tetrahydrofuran; dichloromethane; toluene; acetonitrile;
DOI:10.1021/ja0042332

Reference yield:

: 213687-49-1
(3S,5R,6S)-4-(benzyloxycarbonyl)-5,6-diphenyl-3-methyl-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one

: 339161-06-7
(2R,3S,5R,6S)-2-cyano-3-methyl-5,6-diphenyl-morpholine-4-carboxylic acid benzyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: DIBAL-H / CH₂Cl₂; toluene / 0.67 h / -78 °C

2: Et₃N; DMAP / CH₂Cl₂ / 8 h / 20 °C

3: 93 percent / BF₃*Et₂O / acetonitrile / 0.5 h / -20 °C

With dmap; boron trifluoride diethyl etherate; diisobutylaluminium hydride; triethylamine; In dichloromethane; toluene; acetonitrile;
DOI:10.1021/ja0042332