Alanine, N,N-bis(carboxymethyl)- synthesis
- Product Name:Alanine, N,N-bis(carboxymethyl)-
- CAS Number:22149-55-9
- Molecular formula:C7H11NO6
- Molecular Weight:205.17
Yield:22149-55-9 97%
Reaction Conditions:
at 120;Temperature;
Steps:
1.1; 1.2; 1.3 Example 1 Synthesis of N,N-dicarboxymethylalanine
Step 1 Mixing reaction: Iminodiacetic acid (133 g, 1 mol) and 2-chloropropionic acid (217 g, 2 mol) were added to the reaction flask and heated to 120 ° C for 30 minutes to 6 hours. Step 2 Exhaust treatment: Exhaust gas into the 20% sodium hydroxide solution, the tail gas treatment, recovery. Step 3 Product Recovery: After the reaction mixture was mixed, the mixture was cooled to 60 ° C and reduced to 10 mmHg. After distillation, 2-chloropropionic acid was distilled off. The residue was washed with 100 mL of methanol, filtered, and dried at 50 ° C to give 200 g of dicarboxymethylalanine in a yield of 97%.
References:
CN106349093,2017,A Location in patent:Paragraph 0017; 0018; 0019; 0020; 0021; 0022; 0023-0027
164462-16-2
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