In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 88150-75-8, name is Ethyl 4-(2-(1,3-dioxoisoindolin-2-yl)ethoxy)-3-oxobutanoate belongs to indolines-derivatives compound, it is a common compound, a new synthetic route is introduced below. 88150-75-8
(ii) Preparation of 4-(2-chlorophenyl)-3-ethoxycarbonyl-5-methoxycarbonyl-6-methyl-2-[2-phthalimidoethoxymethyl]-1,4-dihydropyridine STR142 Methyl 3-aminocrotonate (72.2 g; 0.627M) and 2-chlorobenzaldehyde (88.1 g; 0.627M) were added to a solution of ethyl 4-(2-phthalimidoethoxy)acetoacetate (200 g; 0.627M) in isopropanol (1 liter) and the mixture was heated under reflux for 20 hours. The isopropanol was evaporated under reduced pressure and replaced by acetic acid (1 liter). After granulation at 10 the solid was collected and slurried in methanol (300 ml). The solid was collected by filtration and dried in vacuo at 50 to afford the title compound, yield 84.4 g, m.p. 146-147. Analysis %: Found: C, 62.2; H, 5.0; N, 5.2. Calculated for C28 H27 ClN2 O7: C, 62.4; H, 5.05; N, 5.2.
The synthetic route of 88150-75-8 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Pfizer Inc.; US4572908; (1986); A;,
Indoline – Wikipedia,
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