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. 39806-90-1, name is 4-Iodo-1-methyl-1H-pyrazole, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C4H5IN2
1-Methyl-4-((trimethylsilyl)ethynyl)-1 W-pyrazole (19); [00204] 1 -Methyl-4-iodo-pyrazole (18) (5.0g 24.04mmole) was dissolved in DMF (32ml_) and ethynyltrimethylsilane (4.76ml_, 3.31 g, 33.7mmole) was added followed by diisopropylamine (4.46ml_, 3.21 g 31 .78mmole), copper(l) iodide (304mg 1 .59mmole) and triphenylphosphine (1 .26g 4.81 mmole). The reaction was flushed with argon. Palladium acetate (351 mg 1 .56mmole) was added and the reaction was again flushed with argon. It was heated at 60C for 60 mins. The reaction was cooled, added to water (350ml) and extracted with ether (3x100ml_). The organic solution was filtered from a brown solid which was washed with a little more ether. The organic solution was washed with water (3x80ml_), brine, dried and evaporated. The crude product was flash chromatographed (silica) using 1 :4 ethyl acetate:cyclohexane and then 1 :3 ethyl acetate:cyclohexane to give the title compound as a solid (2.85g 67%). 1 H-NMR (CDCI3, 500MHz): delta 0.24 (s, 9H), 3.87 (s, 3H), 7.50 (s, 1 H), 7.58 (s, 1 H).
Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 39806-90-1.
Reference:
Patent; CANCER RESEARCH TECHNOLOGY LIMITED; BAVETSIAS, Vassilios; ATRASH, Butrus; NAUD, Sebastien Gaston Andre; SHELDRAKE, Peter William; BLAGG, Julian; WO2012/123745; (2012); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics