9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

Base Information

Chemical Name:9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one
CAS No.:433246-66-3
Molecular Formula:C₂₁H₁₇BrO₄
Molecular Weight:413.268
Hs Code.:

Synonyms:9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

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Technology Process of 9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

There total 3 articles about 9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-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: 88.0%

: 131526-95-9
9-hydroxy-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

: 99-73-0,132309-76-3
para-bromophenacyl bromide

: 433246-66-3
9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

Guidance literature:: With potassium carbonate; In acetone; at 50 - 56 ℃;
DOI:10.1023/A:1020423826071

Reference yield:

: 504-15-4
orcinol

: 433246-66-3
9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

Guidance literature:: Multi-step reaction with 2 steps

1: 67 percent / H₂SO₄ / ethanol / 0 - 20 °C

2: 88 percent / K₂CO₃ / acetone / 50 - 56 °C

With sulfuric acid; potassium carbonate; In ethanol; acetone; 1: Pechmann condensation / 2: Williamson reaction;
DOI:10.1023/A:1020423826071

Reference yield:

: 611-10-9
2-ethoxycarbonyl-1-cyclopentanone

: 433246-66-3
9-[2-(4-bromophenyl)-2-oxoethoxy]-7-methyl-2,3-dihydrocyclopenta[c]chromen-4(1H)-one

Guidance literature:: Multi-step reaction with 2 steps

1: 67 percent / H₂SO₄ / ethanol / 0 - 20 °C

2: 88 percent / K₂CO₃ / acetone / 50 - 56 °C

With sulfuric acid; potassium carbonate; In ethanol; acetone; 1: Pechmann condensation / 2: Williamson reaction;
DOI:10.1023/A:1020423826071