C₂₀H₃₂O₄

Base Information

• Chemical Name: C₂₀H₃₂O₄
• CAS No.: 1018689-67-2
• Molecular Formula: C₂₀H₃₂O₄
• Molecular Weight: 336.472

Synonyms:C₂₀H₃₂O₄

Chemical Property of C₂₀H₃₂O₄

Chemical Property:

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Technology Process of C₂₀H₃₂O₄

There total 6 articles about C₂₀H₃₂O₄ 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: 92.0%

C21H33O6P → C20H32O4 (1018689-67-2)

Guidance literature:

With lithium aluminium tetrahydride; In diethyl ether; at 0 ℃;

DOI:10.1021/ol8001865

Reference yield: 91.0%

C19H27O6P (1018689-66-1) + dimethyl zinc(II) (544-97-8) → C20H32O4 (1018689-67-2)

Guidance literature:

C₁₉H₂₇O₆P; dimethyl zinc(II); With copper(I) cyanide di(lithium chloride); In tetrahydrofuran; at -30 - 20 ℃; Inert atmosphere;

With diazomethyl-trimethyl-silane; In methanol; regioselective reaction; Inert atmosphere;

DOI:10.1021/jo2003506

Reference yield:

(4S,6S)-4,6-diethenyl-2-(2-propen-1-yloxy)-1,3,2-dioxaphosphorinane 2-oxide (862973-37-3) → C20H32O4 (1018689-67-2)

Guidance literature:

Multi-step reaction with 4 steps

1.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane

2.1: Hoveyda-Grubbs catalyst second generation / 1,2-dichloro-ethane / 90 °C / Inert atmosphere

3.1: 2-nitrobenzenesulfonyl hydrazide; triethylamine / dichloromethane / Inert atmosphere

4.1: copper(I) cyanide di(lithium chloride) / tetrahydrofuran / -30 - 20 °C / Inert atmosphere

4.2: Inert atmosphere

With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; Hoveyda-Grubbs catalyst second generation; copper(I) cyanide di(lithium chloride); 2-nitrobenzenesulfonyl hydrazide; triethylamine; In tetrahydrofuran; dichloromethane; 1,2-dichloro-ethane;

DOI:10.1021/jo2003506

upstream raw materials:

(4S,6S)-4,6-diethenyl-2-(2-propen-1-yloxy)-1,3,2-dioxaphosphorinane 2-oxide

(1S,6S,8S)-8-vinyl-2,9,10-trioxa-1-phosphabicyclo[4.3.1]dec-4-ene 1-oxide

C₁₉H₂₅O₆P

C₁₉H₂₇O₆P

Downstream raw materials:

C₂₉H₅₂O₄Si

(5S,7R,9S,12R,13S,14S)-15-((2S,3R,7R,E)-2-((4S,6R)-2,2-dimethyl-6-(pent-4-enyl)-1,3-dioxan-4-yl)-5-methyl-7-(triethylsilyloxy)dec-4-en-3-yloxy)-13-(4-methoxybenzyloxy)-2,12,14-trimethyl-15-oxopentadec-1-ene-5,7,9-triyl triacetate

(5S,7R,9S,12R,13S,14S)-15-((2S,3R,7R,E)-2-((4S,6R)-2,2-dimethyl-6-(pent-4-enyl)-1,3-dioxan-4-yl)-7-hydroxy-5-methyldec-4-en-3-yloxy)-13-(4-methoxybenzyloxy)-2,12,14-trimethyl-15-oxopentadec-1-ene-5,7,9-triyl triacetate

(5S,7R,9S,12R,13S,14S)-15-((2S,3R,7R,E)-7-acetoxy-2-((4S,6R)-2,2-dimethyl-6-(pent-4-enyl)-1,3-dioxan-4-yl)-5-methyldec-4-en-3-yloxy)-13-(4-methoxybenzyloxy)-2,12,14-trimethyl-15-oxopentadec-1-ene-5,7,9-triyl triacetate

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