(3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne

Base Information

Chemical Name:(3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne
CAS No.:851935-75-6
Molecular Formula:C₃₈H₃₈O₉
Molecular Weight:638.714
Hs Code.:

Synonyms:(3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne

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Chemical Property of (3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne

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Technology Process of (3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne

There total 2 articles about (3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne 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: 86.0%

: (4S,5R,6R)-3,6-dihydroxy-4,5-(p-methoxybenzylidenedioxy)-7-[(4-methoxyphenyl)diphenylmethoxy]heptyne

: 541-41-3
chloroformic acid ethyl ester

: 851935-75-6
(3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne

Guidance literature:: With pyridine; In dichloromethane; at 0 ℃; for 2h;
DOI:10.1039/b418829b

Reference yield:

: (3aR,6R,6aR)-2-(4-Methoxy-phenyl)-6-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-tetrahydro-furo[3,4-d][1,3]dioxol-4-ol

: 851935-75-6
(3S,4R,5R,6R)-3-ethoxycarbonyloxy-6-hydroxy-7-[(4-methoxyphenyl)diphenylmethoxy]-4,5-(p-methoxybenzylidenedioxy)heptyne

Guidance literature:: Multi-step reaction with 2 steps

1: 96 percent / tetrahydrofuran / 14 h / 20 °C

2: 86 percent / pyridine / CH₂Cl₂ / 2 h / 0 °C

With pyridine; In tetrahydrofuran; dichloromethane; 1: Grignard reaction;
DOI:10.1039/b418829b