The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 73027-79-9, name is 4,6-Dichloronicotinic acid. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 73027-79-9
Intermediate 4.4 To a suspension of NaH (5.2 g, 130 mmol) in THF (100 mL) is added MeOH (4.2 g, 130 mmol) at 0 C. After stirring at r.t. for 30 min, a solution of 4,6-dichloronicotinic acid (10 g, 52.9 mmol, U.S. Pat. 2005049419.) in THF (100 mL) is added dropwise at 0 C. The resulting mixture is stirred at room temperature overnight. After adding water, the mixture is washed with ether. The aqueous phase is acidified with KHSO4 and then extracted with ether. The organic phase is washed with brine and dried over MgSO4. Concentration under reduced pressure gives Intermediate 4.4: colorless crystal, ES-MS: M+H=188: CtRet=1.80 min.
With the rapid development of chemical substances, we look forward to future research findings about 73027-79-9.
Reference:
Patent; Yokokawa, Fumiaki; Ehara, Takeru; Kawakami, Shimpei; Irie, Osamu; Suzuki, Masaki; Hitomi, Yuku; Toyao, Atsushi; US2008/319018; (2008); A1;,
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