The synthetic route of 7424-91-1 has been constantly updated, and we look forward to future research findings.
Reference of 7424-91-1, A common heterocyclic compound, 7424-91-1, name is Methyl 3,3-dimethoxypropanoate, molecular formula is C6H12O4, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Example 2: Preparation of methyl 3-methoxyprop-2-enoate Under an atmosphere of nitrogen, 0.2 g (2 mmol) of methanesulfonic acid (Fluka) was added to 150 g of a filtrate, analogously obtained as described in example 1 (about 85percent, 0.86 mol of methyl 3,3-dimethoxypropionate), in a distillation apparatus with round-bottomed flask. Under constant flow of nitrogen, the mixture was slowly heated to 160 ¡ãC, and the methanol formed was directly distilled off. After 6 hours, the heat supply was stopped. The methyl 3-methoxy- prop-2-enoate obtained in this manner was 88percent pure (GC) and was purified by rectification at 10 kPa. The yield was 85 g (85percent) of methyl 3-methoxyprop-2-enoate (Ki0 kpa = 950C) with a purity of 99percent (GC).; Example 6: Preparation of methyl 3-methoxyprop-2-enoate After distillative removal of the unreacted trimethyl ortho formate from example 1, 4.4 t (30 kmol) of the methyl 3,3-dimethoxypropionate thus obtained were reacted under an atmosphere of nitrogen with 6 kg (62 mol) of methanesulfonic acid analogously to example 2. Rectification at 10 kPa gave 2.4 t (21 kmol, 69percent based on trimethyl orthoformate employed) of methyl 3-methoxyprop-2-enoate (Ki0 kpa = 95 ¡ãC) in a purity of 93percent (GC).
The synthetic route of 7424-91-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; LONZA AG; WO2009/56293; (2009); A1;,
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