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ChemicalBook CAS DataBase List 4-Hydroxycinnamic acid
7400-08-0

4-Hydroxycinnamic acid synthesis

10synthesis methods
-

Yield:7400-08-0 98%

Reaction Conditions:

with piperidine;pyridine for 1 h;Reflux;Knoevenagel-Doebner-Stobbe Reaction;

Steps:

2.1.1. General Method for Preparation of (E)-cinnamic Acids (16-23)

General procedure: The corresponding benzaldehyde derivative (24-31) (33mmol) and malonic acid (72 mmol) were dissolved in a mixture of 15 mL of pyridine and 0.25 mL of piperidine and heated under reflux until the end of the reaction, monitored by TLC. The reaction medium was cooled, neutralized with HCl (10% aq.), filtered in Buchner funnel, washed with water and dried, providing the appropriate (E)-cinnamic acids(16-23) as described next.

References:

Do Nascimento, Mayara S. S.;Camara, Vitória R. F.;da Costa, Juliana S.;Barbosa, Juliana M. C.;Lins, Alessandra S. M.;Salom?o, Kelly;de Castro, Solange L.;Carvalho, Samir A.;da Silva, Edson F.;Fraga, Carlos A. M. [Medicinal Chemistry,2020,vol. 16,# 6,p. 774 - 783]

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