(1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one

Base Information

• Chemical Name: (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one
• CAS No.: 170450-12-1
• Molecular Formula: C₂₃H₂₁BrO₃
• Molecular Weight: 425.322

Synonyms:(1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one

Chemical Property of (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one

Chemical Property:

Purity/Quality:

Safty Information:

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Technology Process of (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one

There total 5 articles about (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one 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: 44.0%

(3aS,7aS)-4-bromo-2,2-dimethyl-3a,7a-dihydro-1,3-benzodioxole (130669-75-9) + diphenyl ketene (525-06-4) → (1R,2S,6S,7R)-7-bromo-9-diphenylmethylene-4,4-dimethyl-3,5,8-trioxatricyclo<5.2.2.02,6>undec-10-ene (179677-65-7) + (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.02,6>undec-7-en-11-one (170450-12-1)

Guidance literature:

In tetrahydrofuran; for 48h; Heating;

Reference yield:

diphenyl ketene (525-06-4) → (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.02,6>undec-7-en-11-one (170450-12-1)

Guidance literature:

Multi-step reaction with 2 steps

1: 10 percent / tetrahydrofuran / 48 h / Heating

2: tetrahydrofuran / 48 h / Heating

In tetrahydrofuran;

Reference yield:

(1R,2S,6S,7R)-7-bromo-9-diphenylmethylene-4,4-dimethyl-3,5,8-trioxatricyclo<5.2.2.02,6>undec-10-ene (179677-65-7) → (1R,2S,6S,9R)-7-bromo-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.02,6>undec-7-en-11-one (170450-12-1)

Guidance literature:

In tetrahydrofuran; for 48h; Yield given; Heating;

upstream raw materials:

(3aS,7aS)-4-bromo-2,2-dimethyl-3a,7a-dihydro-1,3-benzodioxole

diphenyl ketene

(1R,2S,6S,7R)-7-bromo-9-diphenylmethylene-4,4-dimethyl-3,5,8-trioxatricyclo<5.2.2.0^2,6>undec-10-ene

dimethyl acetylenedicarboxylate

Downstream raw materials:

4,5-dihydroxy-8,8-diphenylbicyclo<4.2.0>oct-2-en-7-one

(1R,2S,6S,7R)-7-bromo-9-diphenylmethylene-4,4-dimethyl-3,5,8-trioxatricyclo<5.2.2.0^2,6>undec-10-ene

(1R,2S,6R,9R)-4,4-dimethyl-10,10-diphenyl-3,5-dioxatricyclo<7.2.0.0^2,6>undec-7-en-11-one

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