(3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one

Base Information

• Chemical Name: (3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one
• CAS No.: 1423042-96-9
• Molecular Formula: C₁₆H₁₆O₂
• Molecular Weight: 240.302
• Mol file: 1423042-96-9.mol

Synonyms:(3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one

Chemical Property of (3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one

Chemical Property:

Purity/Quality:

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Technology Process of (3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one

There total 2 articles about (3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-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:

iodobenzene (591-50-4) + (3aR*,7aR*,E)-3-((dimethyl(phenyl)silyl)methylene)-7a-methyl-2,3,3a,4-tetrahydrobenzofuran-5(7aH)-one → (3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one (1423042-96-9) + (3aR,7aR)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one

Guidance literature:

With tetrabutyl ammonium fluoride; bis(dibenzylideneacetone)-palladium⁽⁰⁾; In tetrahydrofuran; at 20 ℃; Overall yield = 40 %; Overall yield = 19 mg; Inert atmosphere;

DOI:10.1016/j.tet.2018.12.002

Reference yield:

4-methyl-4-(prop-2-yn-1-yloxy)cyclohexa-2,5-dienone (1375111-55-9) + phenylboronic acid (98-80-6) → (3aS,7aS)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one (1423042-96-9) + (3aR,7aR)-3-((E)-benzylidene)-7a-methyl-2,3,3a,7a-tetrahydrobenzofuran-5(4H)-one

Guidance literature:

With [RhCl(cis-cyclooctene)2]2; (1S,4R,5R)-2-(3,4-dimethoxyphenyl)-5-methoxy-1,5-dimethylbicyclo[2.2.2]octa-2,7-diene; triethylamine; In methanol; at 20 ℃; for 0.666667h; Overall yield = 69 %; Overall yield = 33.2 mg; enantioselective reaction;

DOI:10.1021/ol400363f

upstream raw materials:

4-methyl-4-(prop-2-yn-1-yloxy)cyclohexa-2,5-dienone

phenylboronic acid

iodobenzene