Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 66121-71-9, name is 4-Cyano-1-methylpyrazole, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 4-Cyano-1-methylpyrazole
Step 3: 5-( 1-methyl-I H-pyrazol-4-yI)-2H-tetrazole1-mcthyl-IH-pyrazole-4-carbonitrile (18 gm, 0.168 moles) obtained instep 2, tn-nbutyl tin chloride (65 gm, 0.218 moles), sodium azide (14 gm, 0.20 Imoles) were taken in toluene (180 ml). The reaction mixture was stirred for 24 hours at 110-120C. The progress of the reaction was monitored by HPLC. The above reaction mixture was cooled to 10-15C, to this added 10% ethanolic HC1 solution (100 ml, pH= 1-2). The reaction mixture was stirred for 1-1.5 hours at 10i5C, filtered off the inorganic salts, washed with ethanol (30 ml). Themother liquor and washings were collected and toluene and ethanol were recovered at 50-55C at reduced pressure. To the abOve residue at 20-25C, added di-isopropyl ether (100ml), stirred for 1-2 hours at 20-25C, filtered the solid, washed with.di-isopropyl ether (30ml) and dried at 60-65C to yield the product, 5-(1-methyl-1H-pyrazol-4-yl)-2H-tetrazole.Drywt 25gmYield 1.4 w/w (99%)
According to the analysis of related databases, 66121-71-9, the application of this compound in the production field has become more and more popular.
Reference:
Patent; RALLIS INDIA LIMITED; PALIMKAR, Sanjay Sambhajirao; PAWAR, Jivan Dhanraj; SANKAR, B; KADAM, Subhash Rajaram; HINDUPUR, Rama Mohan; PRABHU, Venkatesh M; PATI, Hari Narayan; SUPHALA, Vadiraj Gopinath; MANE, Avinash Sheshrao; WO2014/2110; (2014); A1;,
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