Related Products of 288-88-0, New discoveries in chemical research and development in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 288-88-0, name is 1H-1,2,4-Triazole, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Example 1; Preparation of l-(4-NitrophenylmethyI)-l,2,4-triazole (i); Preparation of sodium triazole dihydrate; Into a IOOL glass flask were charged 50L of isopropanol and 2.9kg of sodium hydroxide flakes. The reaction mass was heated to 70C. After maintaining for 30min at same temperature lH-l,2,4-triazole (5.0kg) was added to the reaction mass. The reaction mass was maintained at reflux temperature for lhr. Slowly cooled the reaction mass to 30C and maintained for 3hr. The reaction mass was filtered and the wet cake washed with 5L of isopropanol. The wet material was dried at 600C until a constant weight is reached. Yield of sodium 1,2,4-triazole is 6.5kg.
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Reference:
Patent; NATCO PHARMA LIMITED; PULLA REDDY, Muddasani; SATYASRINIVAS, Hanumara; RADHARANI, Kagitha; VENKAIAH CHOWDARY, Nannapaneni; WO2006/137083; (2006); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics