As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 6313-54-8, name is 2-Chloroisonicotinic acid, molecular formula is C6H4ClNO2, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. Recommanded Product: 2-Chloroisonicotinic acid
Step 2 Preparation of Methyl 2-Chloroisonicotinate: To a solution of thionyl chloride (15.0 g, 0.127 mol) in 20 mL of toluene was added 2-chloroisonicotinic acid (10.0 g, 0.063 mol) and the reaction was heated at reflux until gas evolution ceased. Then a solution of methanol (7.7 mL, 0.19 mol) in 10 mL of toluene was added at room temperature over 15 min. The reaction mixture was then refluxed for 1 h and then cooled to room temperature. The clear solution was poured into 100 mL of water, basified with 40% NaOH and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate filtered. The filtrate was concentrated in vacuo to give 8.2 g (83%) of product as a brown oil which solidified upon standing, mp: 36-37 C.
With the rapid development of chemical substances, we look forward to future research findings about 6313-54-8.
Reference:
Patent; Pharmacia Corporation; US6509361; (2003); B1;,
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