2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

Base Information

Chemical Name:2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane
CAS No.:853086-59-6
Molecular Formula:C₂₁H₂₇NO₆
Molecular Weight:389.448
Hs Code.:

Synonyms:2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

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Chemical Property of 2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

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Technology Process of 2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

There total 8 articles about 2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane 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: 91.0%

: 853086-57-4
2,3-O-benzylidene-7-tert-butoxycarbonyl-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

: 762-42-5
dimethyl acetylenedicarboxylate

: 853086-59-6
2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

Guidance literature:: With toluene-4-sulfonic acid; In acetone; at 20 ℃;
DOI:10.1039/b419154d

Reference yield:

: 853086-51-8
2,3-O-benzylidene-7-tert-butoxycarbonyl-2,3-exo-dihydroxy-7-azabicyclo[2.2.1]heptene

: 853086-59-6
2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

Guidance literature:: Multi-step reaction with 4 steps

1: 100 percent / N-methylmorpholine-N-oxide; OsO₄; aq. NaHCO₃ / tetrahydrofuran; 2-methyl-propan-2-ol / 20 °C

2: 81 percent / pyridine / CH₂Cl₂ / 1 h / 0 °C

3: 90 percent / KNO₂; 18-crown-6 / dimethylformamide / 120 h / 50 °C

4: 91 percent / p-TsOH / acetone / 20 °C

With pyridine; osmium(VIII) oxide; potassium nitrite; 18-crown-6 ether; sodium hydrogencarbonate; toluene-4-sulfonic acid; 4-methylmorpholine N-oxide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; acetone; tert-butyl alcohol;
DOI:10.1039/b419154d

Reference yield:

: 853086-53-0
2,3-O-benzylidene-7-tert-butoxycarbonyl-2,3,5,6-exo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

: 853086-59-6
2,3-O-benzylidene-7-tert-butoxycarbonyl-5,6-O-isopropylidene-2,3-exo-5,6-endo-tetrahydroxy-7-azabicyclo[2.2.1]heptane

Guidance literature:: Multi-step reaction with 3 steps

1: 81 percent / pyridine / CH₂Cl₂ / 1 h / 0 °C

2: 90 percent / KNO₂; 18-crown-6 / dimethylformamide / 120 h / 50 °C

3: 91 percent / p-TsOH / acetone / 20 °C

With pyridine; potassium nitrite; 18-crown-6 ether; toluene-4-sulfonic acid; In dichloromethane; N,N-dimethyl-formamide; acetone;
DOI:10.1039/b419154d