(7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

Base Information

Chemical Name:(7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate
CAS No.:1445591-72-9
Molecular Formula:C₁₈H₁₉BrN₂O₄
Molecular Weight:407.264
Hs Code.:

Synonyms:(7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

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Chemical Property of (7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

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Technology Process of (7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

There total 5 articles about (7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate 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: 16.0%

: 1445591-71-8
(7,8-trans)-methyl 8-((2-(4-bromophenyl)-2-oxoethyl)carbamoyl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

: 1445591-72-9
(7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

Guidance literature:: With ammonium acetate; In N,N-dimethyl-formamide; at 140 ℃; for 2h;

Reference yield:

: 1445591-65-0,164916-54-5
(1,2-trans)-1-benzyl 2-methyl 4-oxocyclopentane-1,2-dicarboxylate

: 1445591-72-9
(7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1: toluene-4-sulfonic acid / toluene / 2 h / Dean-Stark; Reflux

2: hydrogen; palladium 10% on activated carbon / methanol

3: N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 0.08 h / 0 - 5 °C

4: ammonium acetate / N,N-dimethyl-formamide / 2 h / 140 °C

With palladium 10% on activated carbon; ammonium acetate; hydrogen; toluene-4-sulfonic acid; N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In methanol; N,N-dimethyl-formamide; toluene;

Reference yield:

: 115694-82-1
(1S,2S)-2-(methoxycarbonyl)-4-oxocyclopentanecarboxylic acid

: 1445591-72-9
(7,8-trans)-methyl 8-(5-(4-bromophenyl)-1H-imidazol-2-yl)-1,4-dioxaspiro[4.4]nonane-7-carboxylate

Guidance literature:: Multi-step reaction with 5 steps

1.1: 1,1'-carbonyldiimidazole / toluene / 0.67 h / 70 °C / Inert atmosphere

1.2: 4 h / 70 °C / Inert atmosphere

2.1: toluene-4-sulfonic acid / toluene / 2 h / Dean-Stark; Reflux

3.1: hydrogen; palladium 10% on activated carbon / methanol

4.1: N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 0.08 h / 0 - 5 °C

5.1: ammonium acetate / N,N-dimethyl-formamide / 2 h / 140 °C

With palladium 10% on activated carbon; ammonium acetate; hydrogen; toluene-4-sulfonic acid; N-ethyl-N,N-diisopropylamine; 1,1'-carbonyldiimidazole; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; In methanol; N,N-dimethyl-formamide; toluene;