(E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

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Chemical Name:(E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone
CAS No.:929033-18-1
Molecular Formula:C₂₂H₂₀O₇
Molecular Weight:396.397
Hs Code.:

Synonyms:(E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

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Chemical Property of (E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

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Technology Process of (E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

There total 4 articles about (E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone 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: 75.0%

: 929033-38-5
(E)-5-bromo-6-[2-(2-methoxyphenyl)-vinyl]-benzo[1,3]dioxole

: 5222-73-1
3,4-dimethoxy-3-cyclobutene-1,2-dione

: 929033-18-1
(E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

Guidance literature:: (E)-5-bromo-6-[2-(2-methoxyphenyl)-vinyl]-benzo[1,3]dioxole; With tert.-butyl lithium; In tetrahydrofuran; pentane; at -78 ℃; for 0.75h;

3,4-dimethoxy-3-cyclobutene-1,2-dione; In tetrahydrofuran; pentane; at -78 ℃; for 0.5h; Further stages.;
DOI:10.1002/anie.200603538

Reference yield:

: 107907-11-9
5-bromo-6-[2-(2-methoxyphenyl)-vinyl]-benzo[1,3]dioxole

: 929033-18-1
(E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

Guidance literature:: Multi-step reaction with 2 steps

1.1: 99 percent / iodine / CHCl₃ / 240 h / 20 °C

2.1: tert-butyllithium / tetrahydrofuran; pentane / 0.75 h / -78 °C

2.2: 75 percent / tetrahydrofuran; pentane / 0.5 h / -78 °C

With iodine; tert.-butyl lithium; In tetrahydrofuran; chloroform; pentane;
DOI:10.1002/anie.200603538

Reference yield:

: 64820-07-1
((2-methoxyphenyl)methyl)triphenylphosphonium bromide

: 929033-18-1
(E)-4-hydroxy-2,3-dimethoxy-4-{6-[2-(2-methoxyphenyl)vinyl]-benzo[1,3]dioxol-5-yl}cyclobut-2-enone

Guidance literature:: Multi-step reaction with 3 steps

1.1: potassium tert-butoxide / tetrahydrofuran / 0.5 h / 0 °C

1.2: 87 percent / tetrahydrofuran / 16 h / 20 °C

2.1: 99 percent / iodine / CHCl₃ / 240 h / 20 °C

3.1: tert-butyllithium / tetrahydrofuran; pentane / 0.75 h / -78 °C

3.2: 75 percent / tetrahydrofuran; pentane / 0.5 h / -78 °C

With potassium tert-butylate; iodine; tert.-butyl lithium; In tetrahydrofuran; chloroform; pentane;
DOI:10.1002/anie.200603538