ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

Base Information

Chemical Name:ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside
CAS No.:176167-70-7
Molecular Formula:C₃₁H₃₄Br₂O₆S
Molecular Weight:694.481
Hs Code.:

Synonyms:ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

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Chemical Property of ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

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Technology Process of ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

There total 7 articles about ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-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:

: 100-39-0
benzyl bromide

: 176167-70-7
ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

Guidance literature:: Multi-step reaction with 5 steps

1: 1.) dibutyltin oxide, 2.) cesium fluoride / 1.) methanol, reflux, 1 h, 2.) DMF, RT, 18 h

2: 95 percent / NaH / dimethylformamide / 1 h / Ambient temperature

3: 89 percent / acetic acid / H₂O / 17 h / 50 °C

4: 1.) dibutyltin oxide, 2.) cesium fluoride / 1.) methanol, reflux, 2 h, 2.) DMF, RT, 18 h

5: 575 mg / pyridine / 4 h / Ambient temperature

With pyridine; sodium hydride; di(n-butyl)tin oxide; acetic acid; cesium fluoride; In water; N,N-dimethyl-formamide;
DOI:10.1016/0040-4020(96)00034-8

Reference yield:

: 151669-30-6
ethyl 2,3-di-O-isopropylidene-1-thio-α-D-mannopyranoside

: 176167-70-7
ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

Guidance literature:: Multi-step reaction with 5 steps

1: 1.) dibutyltin oxide, 2.) cesium fluoride / 1.) methanol, reflux, 1 h, 2.) DMF, RT, 18 h

2: 95 percent / NaH / dimethylformamide / 1 h / Ambient temperature

3: 89 percent / acetic acid / H₂O / 17 h / 50 °C

4: 1.) dibutyltin oxide, 2.) cesium fluoride / 1.) methanol, reflux, 2 h, 2.) DMF, RT, 18 h

5: 575 mg / pyridine / 4 h / Ambient temperature

With pyridine; sodium hydride; di(n-butyl)tin oxide; acetic acid; cesium fluoride; In water; N,N-dimethyl-formamide;
DOI:10.1016/0040-4020(96)00034-8

Reference yield:

: 2,3-O-isopropylidene-6-O-(tert-butyldimethylsilyl)-1-thio-α-D-mannopyranoside

: 176167-70-7
ethyl 3,6-di-O-benzyl-2-O-(2-dibromomethyl)benzoyl-4-O-methyl-1-thio-α-D-mannopyranoside

Guidance literature:: Multi-step reaction with 6 steps

1: 79 percent / TBAF / dioxane / 1.5 h / Ambient temperature

2: 1.) dibutyltin oxide, 2.) cesium fluoride / 1.) methanol, reflux, 1 h, 2.) DMF, RT, 18 h

3: 95 percent / NaH / dimethylformamide / 1 h / Ambient temperature

4: 89 percent / acetic acid / H₂O / 17 h / 50 °C

5: 1.) dibutyltin oxide, 2.) cesium fluoride / 1.) methanol, reflux, 2 h, 2.) DMF, RT, 18 h

6: 575 mg / pyridine / 4 h / Ambient temperature

With pyridine; tetrabutyl ammonium fluoride; sodium hydride; di(n-butyl)tin oxide; acetic acid; cesium fluoride; In 1,4-dioxane; water; N,N-dimethyl-formamide;
DOI:10.1016/0040-4020(96)00034-8