methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

Base Information

Chemical Name:methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside
CAS No.:128810-97-9
Molecular Formula:C₂₅H₂₄Br₂O₁₀
Molecular Weight:644.268
Hs Code.:

Synonyms:methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

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Chemical Property of methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

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Technology Process of methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

There total 3 articles about methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside 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: 45.0%

: 67-56-1
methanol

: 627473-01-2
2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranosyl bromide

: 128810-97-9
methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

Guidance literature:: With 2,4,6-trimethyl-pyridine; silver trifluoromethanesulfonate; In dichloromethane; at 0 ℃;
DOI:10.1016/S0957-4166(03)00623-2

Reference yield:

: 116187-63-4
C₂₁H₂₀Br₂O₈

: 108-24-7
acetic anhydride

: 128810-97-9
methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

Guidance literature:: With pyridine; dmap;
DOI:10.1016/0008-6215(90)84126-F

Reference yield:

: 1,2,3-tris-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-D-mannopyranoside

: 128810-97-9
methyl 2,3-bis-O-acetyl-4,6-bis-O-(p-bromobenzoyl)-α-D-mannopyranoside

Guidance literature:: Multi-step reaction with 2 steps

1: 77 percent / HBr; AcOH / CH₂Cl₂ / 20 °C

2: 45 percent / AgOTf; 2,4,6-collidine / CH₂Cl₂ / 0 °C

With 2,4,6-trimethyl-pyridine; hydrogen bromide; silver trifluoromethanesulfonate; acetic acid; In dichloromethane;
DOI:10.1016/S0957-4166(03)00623-2