(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

Base Information

Chemical Name:(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal
CAS No.:380621-64-7
Molecular Formula:C₁₇H₁₇BrO₄
Molecular Weight:365.224
Hs Code.:

Synonyms:(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

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Chemical Property of (2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

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Technology Process of (2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

There total 4 articles about (2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one 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: 91.0%

: 7381-30-8
2,2,7,7-tetramethyl-3,6-dioxa-2,7-disilaoctane

: 380621-63-6
(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one

: 380621-64-7
(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

Guidance literature:: With trimethylsilyl trifluoromethanesulfonate; In dichloromethane; at 18 ℃; for 24h;
DOI:10.1039/b105376k

Reference yield:

: 1125-88-8
benzaldehyde dimethyl acetal

: 380621-64-7
(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

Guidance literature:: Multi-step reaction with 3 steps

1: 14.1 g / (1S)-(+)-camphor-10-sulfonic acid monohydrate / CH₂Cl₂ / 1 h / -20 - 10 °C

2: 91 percent / TMSOTf / CH₂Cl₂ / 24 h / 18 °C

With trimethylsilyl trifluoromethanesulfonate; (+)-camphor-10-sulfonic acid monohydrate; In dichloromethane;
DOI:10.1039/b105376k

Reference yield:

: 67451-62-1,82683-92-9,132958-32-8,130792-45-9
cis-(1S,2S)-1,2-dihydroxy-3-bromocyclohexa-3,5-diene

: 380621-64-7
(2S,3aS,4R,7R,7aS)-7-bromo-3a,4,7,7a-tetrahydro-2-phenyl-4,7-ethano-1,3-benzodioxol-8-one ethylene acetal

Guidance literature:: Multi-step reaction with 3 steps

1: 14.1 g / (1S)-(+)-camphor-10-sulfonic acid monohydrate / CH₂Cl₂ / 1 h / -20 - 10 °C

2: 91 percent / TMSOTf / CH₂Cl₂ / 24 h / 18 °C

With trimethylsilyl trifluoromethanesulfonate; (+)-camphor-10-sulfonic acid monohydrate; In dichloromethane;
DOI:10.1039/b105376k