Chemical Research Letters, April 2021. With the volume and accessibility of scientific research increasing across the world, it has never been more important to continue building the reputation we’ve spent the past two centuries establishing. 93-97-0, Name is Benzoic anhydride, molecular formula is C14H10O3, HPLC of Formula: https://www.ambeed.com/products/93-97-0.html, belongs to isothiazole compound, is a common compound. In a patnet, author is Koyioni, Maria, once mentioned the new application about 93-97-0.
The reaction of Appel salt 1 with 1H-pyrazol-5-amines 2 gives main products N-(4-chloro-5H-1,2,3-dithiazol-5-ylidene)-1H-pyrazol-5-amines 3, and 6H-pyrazolo[3,4-c]isothiazole-3-carbonitriles 5, together with several minor side products. When the pyrazoles are N-1 methylated, the product ratio 3:5 can be modified by adjusting the pH of the reaction medium: acidic conditions favor formation of the dithiazolylidenes 3, while basic conditions favor formation of pyrazolo[3,4-c]isothiazoles S. Furthermore, thermolysis of N-(4-chloro-5H-1,2,3-dithiazol-5-ylidene)-1H-pyrazol-5-amines 3 gives 1H-pyrazolo[3,4-d]thiazole-5-carbonitriles 4. Single crystal X-ray crystallography supports the structure of 4,6-dimethyl-6H-pyrazolo-[3,4-c]isothiazole-3-carbonitrile (5a) and helps resolve a previous incorrect structural assignment of 1H-pyrazolo[3,4-d]thiazole-5-carbonitriles 4.
This is the end of this tutorial post, and I hope it has helped your research about 93-97-0, HPLC of Formula: https://www.ambeed.com/products/93-97-0.html.
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com