2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

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Chemical Name:2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate
CAS No.:207673-32-3
Molecular Formula:C₃₄H₃₄O₈
Molecular Weight:570.639
Hs Code.:

Synonyms:2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

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Chemical Property of 2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

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Technology Process of 2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

There total 3 articles about 2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate 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: 86.0%

: 5865-77-0
1,1'-ethyne-1,2-diylbis[2-(bromomethyl)benzene]

: 107428-17-1
dimethyl propargylmalonate

: 207673-32-3
2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

Guidance literature:: dimethyl propargylmalonate; With sodium hydride; In tetrahydrofuran; at 20 ℃; for 0.5h;

1,1'-ethyne-1,2-diylbis[2-(bromomethyl)benzene]; In tetrahydrofuran; at 20 ℃; for 1h;
DOI:10.1135/cccc20000577

Reference yield:

: 18887-51-9
2,2'-Bis-acetoxymethyl-diphenylacetylen

: 207673-32-3
2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

Guidance literature:: Multi-step reaction with 3 steps

1.1: 87 percent / Na[AlH₂(OCH₂CH₂OCH₃)2] / toluene / 0.25 h / 20 °C

2.1: 87 percent / PBr₃ / tetrahydrofuran / 0.5 h / 0 °C

3.1: NaH / tetrahydrofuran / 0.5 h / 20 °C

3.2: 86 percent / tetrahydrofuran / 1 h / 20 °C

With phosphorus tribromide; sodium hydride; sodium bis(2-methoxyethoxy)aluminium dihydride; In tetrahydrofuran; toluene; 1.1: Reduction / 2.1: Substitution / 3.1: Metallation / 3.2: Substitution;
DOI:10.1135/cccc20000577

Reference yield:

: 18887-49-5
2-[2-(2-hydroxymethylphenyl)-1-ethynyl]phenylmethanol

: 207673-32-3
2,2'-Di(but-2-yn-1-yl)-2,2'-{ethynediylbis[(2,1-phenylene)methylene]}dimalonate

Guidance literature:: Multi-step reaction with 2 steps

1.1: 87 percent / PBr₃ / tetrahydrofuran / 0.5 h / 0 °C

2.1: NaH / tetrahydrofuran / 0.5 h / 20 °C

2.2: 86 percent / tetrahydrofuran / 1 h / 20 °C

With phosphorus tribromide; sodium hydride; In tetrahydrofuran; 1.1: Substitution / 2.1: Metallation / 2.2: Substitution;
DOI:10.1135/cccc20000577