pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

Base Information

Chemical Name:pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside
CAS No.:143416-43-7
Molecular Formula:C₂₂H₂₇ClO₈
Molecular Weight:454.905
Hs Code.:

Synonyms:pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

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Technology Process of pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

There total 6 articles about pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside 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%

: 108-24-7
acetic anhydride

: 143416-67-5
Chloro-acetic acid (2S,4aR,6R,7R,8R,8aS)-7-hydroxy-6-pent-4-enyloxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yl ester

: 143416-43-7
pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

Guidance literature:: With dmap; In dichloromethane;
DOI:10.1016/S0040-4020(01)81568-4

Reference yield:

: 821-09-0
n-Pent-4-enyl alcohol

: 143416-43-7
pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

Guidance literature:: Multi-step reaction with 5 steps

1: 74 percent / silver triflate, molecular sieves (4 Angstroem) / CH₂Cl₂ / 0.5 h / -20 °C

2: 96 percent / MeOH / NaOMe

3: 44 percent / HCOOH / 2 h / Ambient temperature

4: 60 percent / pyridine / CH₂Cl₂ / 0.33 h / 0 °C

5: 93 percent / 4-dimethylamino pyridine / CH₂Cl₂

With pyridine; methanol; dmap; formic acid; 4 A molecular sieve; silver trifluoromethanesulfonate; sodium methylate; In dichloromethane;
DOI:10.1016/S0040-4020(01)81568-4

Reference yield:

: 125367-09-1,125367-10-4,128503-34-4,143416-41-5
pent-4-enyl 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranoside

: 143416-43-7
pent-4-enyl 2-O-acetyl-4,6-O-benzylidene-3-O-chloroacetyl-β-D-galactopyranoside

Guidance literature:: Multi-step reaction with 4 steps

1: 96 percent / MeOH / NaOMe

2: 44 percent / HCOOH / 2 h / Ambient temperature

3: 60 percent / pyridine / CH₂Cl₂ / 0.33 h / 0 °C

4: 93 percent / 4-dimethylamino pyridine / CH₂Cl₂

With pyridine; methanol; dmap; formic acid; sodium methylate; In dichloromethane;
DOI:10.1016/S0040-4020(01)81568-4