Adding a certain compound to certain chemical reactions, such as: 27996-86-7, name is 4-[1,2,4]Triazol-1-yl-benzaldehyde, belongs to triazoles compound, 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 27996-86-7, name: 4-[1,2,4]Triazol-1-yl-benzaldehyde
General procedure: Oleanolic acid analogues 4e29 were obtained from Scheme 1.Firstly, oleanolic acid (0.66 mmol) and selectfluor (1-chloromethy l-4-fluoro-1, 4-diazoniabicyclo [2.2.2] octane bis (tetrafluoroborate))(1.98 mmol) were dissolved in the mixed solution of anhydrousdioxane (4 mL) and nitromethane (6 mL), and stirred at 80 C for4 h. Then the reaction mixture was concentrated under reducedpressure, extracted with ethyl acetate and deionized water, filteredand dried with anhydrous magnesium sulfate. Next, the crudeproduct was purified on a silica gel column with petroleum ether/ethyl acetate (v/v 5:1) as the eluent to obtain the intermediate OA-F.Secondly, OA-F (0.51 mmol) was added into 75 mL of acetone andstirred at 0 C until it was completely dissolved. Then the Jonesreagent (0.5 mL) was slowly added into the solution and stirred for5 min. After pretreatment similar with OA-F, the crude product waspurified via dichloromethane/petroleum ether (v/v 2:1/3:1) asthe eluent on silica gel column to produce another intermediateOA-F-01. Finally, OA-F-01 (0.44 mmol) and potassium hydroxide(0.88 mmol) were dissolved in the mixed solution of dichloromethane(10 mL) and ethanol (10 mL) followed by adding aldehyde(0.88 mmol) and stirring at room temperature for 12 h. After pretreatmentsimilar with OA-F and OA-F-01, petroleum ether/dichloromethane or ethyl acetate were used as the eluent to purifythe crude product for gaining the analogues 4-29.
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 4-[1,2,4]Triazol-1-yl-benzaldehyde, other downstream synthetic routes, hurry up and to see.
Reference:
Article; Zhong, Ying-Ying; Chen, Hui-Sheng; Wu, Pan-Pan; Zhang, Bing-Jie; Yang, Yang; Zhu, Qiu-Yan; Zhang, Chun-Guo; Zhao, Su-Qing; European Journal of Medicinal Chemistry; vol. 164; (2019); p. 706 – 716;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics