2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

Base Information

Chemical Name:2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one
CAS No.:1116690-31-3
Molecular Formula:C₂₁H₂₇BrN₂O₃
Molecular Weight:435.361
Hs Code.:

Synonyms:2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

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Chemical Property of 2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

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Technology Process of 2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

There total 7 articles about 2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-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: 80.0%

: 111-24-0
1,5-dibromo-pentane

: 357980-82-6
4-(3,4-dimethoxy-phenyl)-4a,5,8,8a-tetrahydro-2H-phthalazin-1-one

: 1116690-31-3
2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

Guidance literature:: 4-(3,4-dimethoxy-phenyl)-4a,5,8,8a-tetrahydro-2H-phthalazin-1-one; With sodium hydride; In N,N-dimethyl-formamide; mineral oil; at 20 ℃; for 0.166667h;

1,5-dibromo-pentane; In N,N-dimethyl-formamide; mineral oil; at 20 ℃; for 0.5h;
DOI:10.1016/j.bmcl.2013.11.028

Reference yield:

: 89980-69-8
3,4-dimethoxyphenylmagnesium bromide

: 1116690-31-3
2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

Guidance literature:: Multi-step reaction with 3 steps

1.1: tetrahydrofuran / 0 - 20 °C

1.2: pH 2

2.1: hydrazine hydrate / ethanol / Reflux

3.1: sodium hydride / mineral oil / 0.5 h / 20 °C

3.2: 0.5 h / 20 °C

With sodium hydride; hydrazine hydrate; In tetrahydrofuran; ethanol; mineral oil; 1.1: Grignard reaction / 1.2: Grignard reaction;
DOI:10.1016/j.bmc.2008.10.065

Reference yield:

: 935-79-5
cis-1,2,3,6-tetrahydrophthalic anhydride

: 1116690-31-3
2-(2-bromopentyl)-4-(3,4-dimethoxyphenyl)-4a,5,6,7,8,8a-hexahydrophthalazin-1(2H)-one

Guidance literature:: Multi-step reaction with 3 steps

1.1: tetrahydrofuran / 0 - 20 °C

1.2: pH 2

2.1: hydrazine hydrate / ethanol / Reflux

3.1: sodium hydride / mineral oil / 0.5 h / 20 °C

3.2: 0.5 h / 20 °C

With sodium hydride; hydrazine hydrate; In tetrahydrofuran; ethanol; mineral oil; 1.1: Grignard reaction / 1.2: Grignard reaction;
DOI:10.1016/j.bmc.2008.10.065