2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

Base Information

Chemical Name:2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal
CAS No.:208394-50-7
Molecular Formula:C₁₈H₂₄O₈S
Molecular Weight:400.45
Hs Code.:

Synonyms:2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

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Chemical Property of 2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

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Technology Process of 2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

There total 3 articles about 2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal 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: 77.0%

: 77-76-9
2,2-dimethoxy-propane

: 208394-49-4
2,5-anhydro-3-O-p-toluenesulfonyl-L-idose ethylene acetal

: 208394-50-7
2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

Guidance literature:: With toluene-4-sulfonic acid; at 20 ℃; for 24h;
DOI:10.1016/S0040-4020(00)00482-8

Reference yield:

: 34885-58-0
C₄₂H₄₂O₁₀S₂

: 208394-50-7
2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

Guidance literature:: Multi-step reaction with 2 steps

1: 6.65 g / toluene-4-sulfonic acid / 5 h / 80 °C

2: 77 percent / toluene-4-sulfonic acid / 24 h / 20 °C

With toluene-4-sulfonic acid; 1: cyclocondensation / 2: cyclocondensation;
DOI:10.1016/S0040-4020(00)00482-8

Reference yield:

: 98-59-9
p-toluenesulfonyl chloride

: 208394-50-7
2,5-anhydro-4,6-isopropylidene-3-O-p-toluenesulfonyl-L-idose ethylene acetal

Guidance literature:: Multi-step reaction with 3 steps

1: 26.2 g / pyridine / 240 h / 20 °C

2: 6.65 g / toluene-4-sulfonic acid / 5 h / 80 °C

3: 77 percent / toluene-4-sulfonic acid / 24 h / 20 °C

With pyridine; toluene-4-sulfonic acid; 1: Tosylation / 2: cyclocondensation / 3: cyclocondensation;
DOI:10.1016/S0040-4020(00)00482-8