The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 1693-37-4, Name is N-(4-Hydroxyphenyl)propionamide, SMILES is CCC(NC1=CC=C(O)C=C1)=O, in an article , author is Zhao, Xiao-Bo, once mentioned of 1693-37-4, HPLC of Formula: https://www.ambeed.com/products/1693-37-4.html.
Eco-friendly and practical methods for the complementary regioselective synthesis of 3-(1-substituted pyrazol-3-yl) indoles and 3-(1-substituted pyrazol-5-yl) indoles, from DBSA-mediated regioselective cyclocondensation reaction of beta-ethyltho-beta-indolyl-alpha, beta-unsaturated ketones and monosubstituted hydrazines in water through simply varying the appropriate reaction way, had been developed. The methods not only efficiently avoided the use of organic solvent but also exhibited attractive characteristics such as operational simplicity, broad substrate scope, easy separation of products and ease of scale-up. [GRAPHICS]
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles