One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, HPLC of Formula: C10H7ClN2, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 20375-65-9, Name is 3-Phenyl-6-chloropyridazine, molecular formula is C10H7ClN2
Highly enantioselective phase-transfer-catalyzed alkylation of protected alpha-amino acid amides toward practical asymmetric synthesis of vicinal diamines, alpha-amino ketones, and alpha-amino alcohols
Highly enantioselective alkylation of protected glycine diphenylmethyl (Dpm) amide 1 and Weinreb amide 10 has been realized under phase-transfer conditions by the successful utilization of designer chiral quaternary ammonium salts of type 4 as catalyst. Particularly, remarkable reactivity of the chiral ammonium enolate derived from 1b and 4c allowed the reaction with less reactive simple secondary alkyl halides with high efficiency and enantioselectivity. An additional unique feature of this chiral ammonium enolate is its ability to recognize the chirality of beta-branched primary alkyl halides, which provides impressive levels of kinetic resolution and double stereodifferentiation during the alkylation, allowing for two alpha- and gamma-stereocenters to be controlled. Combined with the subsequent reduction using LiAlH4 in cyclopentyl methyl ether (CPME), this system offers a facile access to structurally diverse optically active vicinal diamines. Furthermore, the optically active alpha-amino acid Weinreb amide 11 can be efficiently converted to the corresponding amino ketone by a simple treatment with Grignard reagents. In addition, reduction and alkylation of the optically active alpha-amino ketone into both syn and anti alpha-amino alcohols with almost complete relative and absolute stereochemical control have been achieved. With (S,S)- and (R,R)-4 in hand, the present approach renders both enantiomers of alpha-amino amides including Weinreb amides readily available with enormous structural variation and also establishes a general and practical route to vicinal diamines, alpha-amino ketones, and alpha-amino alcohols with the desired stereochemistry.
One of the oldest and most widely used commercial enzyme inhibitors is aspirin, HPLC of Formula: C10H7ClN2, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 20375-65-9
Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2720 – PubChem