Adding a certain compound to certain chemical reactions, such as: 71777-70-3, Ethyl 4-ethoxypicolinate, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Recommanded Product: 71777-70-3, blongs to pyridine-derivatives compound. Recommanded Product: 71777-70-3
Step-2: 4-Ethoxypicolinohydrazide: To a 0 C cooled solution of ethyl 4-ethoxypicolinate (5.0 g, 25.6 mmol) in ethanol (20 mL) was added hydrazine hydrate (6.0 g, 120 mmol) drop-wise. After stirring for 2 h at RT, the separated out solid was filtered. The solid residue was washed with water (50 mL) and dried to yield 5.80 g (99%) of the title compound as white solid HNMR (400 MHz, DMSO) delta 9.82 (brs, 1H, D20 exchangeable), 8.40 (d, = 5.5 Hz, 1Eta), 7.46 (d, = 2.5 Hz, 1Eta), 7.09(dd, = 5.5 &2.5HZ, 1Eta), 4.54 (brs, 2Eta, D20 exchangeable), 4.11(q, = 7.0Hz, 2Eta), 1.38 (t, = 7.0Hz,3H); GC-MS (m/z) 181(M)+.
The synthetic route of 71777-70-3 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; LUPIN LIMITED; IRLAPATI, Nageswara, Rao; SHAIKH, Zubair, Abdul Wajid; KARCHE, Vijay, Pandurang; DESHMUKH, Gokul, Keruji; SINHA, Neelima; PALLE, Venkata, P.; KAMBOJ, Rajender, Kumar; WO2013/164769; (2013); A1;,
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