(E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

Base Information

Chemical Name:(E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester
CAS No.:294198-61-1
Molecular Formula:C₂₈H₃₁Cl₃O₇
Molecular Weight:585.909
Hs Code.:

Synonyms:(E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

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Chemical Property of (E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

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Technology Process of (E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

There total 6 articles about (E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl 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: 90.0%

: 294198-60-0
(E)-(4S,5R)-4-Benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

: 294198-61-1
(E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

Guidance literature:: With acetic acid; In tetrahydrofuran; at 80 ℃; for 48h;
DOI:10.1016/S0957-4166(00)00245-7

Reference yield:

: 183625-23-2
methyl (4S,5R)-4-benzyloxy-5-hydroxy-2(E)-hexenoate

: 294198-61-1
(E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

Guidance literature:: Multi-step reaction with 6 steps

1: imidazole / dimethylformamide / 2.5 h / 0 - 20 °C

2: 2M aq. NaOH / methanol / 12 h / 20 °C

3: DCC; DMAP / CH₂Cl₂ / 72 h / 20 °C

4: aq. AcOH / tetrahydrofuran / 15 h / 70 - 110 °C

5: 66 percent / DCC; DMAP; (+)-CSA / CH₂Cl₂ / 48 h / 20 °C

6: 90 percent / aq. AcOH / tetrahydrofuran / 48 h / 80 °C

With 1H-imidazole; dmap; sodium hydroxide; (1S)-10-camphorsulfonic acid; acetic acid; dicyclohexyl-carbodiimide; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; 1: silylation / 2: Hydrolysis / 3: Esterification / 4: desilylation / 5: Keck esterification / 6: desilylation;
DOI:10.1016/S0957-4166(00)00245-7

Reference yield:

: (E)-(4S,5R)-4-Benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-hex-2-enoic acid methyl ester

: 294198-61-1
(E)-(4S,5R)-4-Benzyloxy-5-hydroxy-hex-2-enoic acid (E)-(1R,2S)-2-benzyloxy-1-methyl-4-(2,2,2-trichloro-ethoxycarbonyl)-but-3-enyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 2M aq. NaOH / methanol / 12 h / 20 °C

2: DCC; DMAP / CH₂Cl₂ / 72 h / 20 °C

3: aq. AcOH / tetrahydrofuran / 15 h / 70 - 110 °C

4: 66 percent / DCC; DMAP; (+)-CSA / CH₂Cl₂ / 48 h / 20 °C

5: 90 percent / aq. AcOH / tetrahydrofuran / 48 h / 80 °C

With dmap; sodium hydroxide; (1S)-10-camphorsulfonic acid; acetic acid; dicyclohexyl-carbodiimide; In tetrahydrofuran; methanol; dichloromethane; 1: Hydrolysis / 2: Esterification / 3: desilylation / 4: Keck esterification / 5: desilylation;
DOI:10.1016/S0957-4166(00)00245-7