Formula: C7H6ClNO. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Amino-5-chlorobenzaldehyde, is researched, Molecular C7H6ClNO, CAS is 20028-53-9, about A One-Step Synthesis of 2,4-Unsubstituted Quinoline-3-carboxylic Acid Esters from o-Nitrobenzaldehydes. Author is Venkatesan, Hariharan; Hocutt, Frances M.; Jones, Todd K.; Rabinowitz, Michael H..
A straightforward and efficient one-step procedure for the synthesis of 2,4-unsubstituted quinoline-3-carboxylic acid Et esters, e.g., I (R1 = Me, Et; R2 = H, F, Cl, Br, OH), is described. The simple reductive cyclization is carried out by treating various substituted o-nitrobenzaldehydes with inexpensive, com. available 3,3-diethoxypropionic acid Et ester and SnCl2·2H2O in refluxing ethanol.
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Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem