HPLC of Formula: 2199-44-2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate, is researched, Molecular C9H13NO2, CAS is 2199-44-2, about Microwave-accelerated synthesis of benzyl 3,5-dimethyl-pyrrole-2-carboxylate. Author is Regourd, Jasmine; Comeau, Ian M.; Beshara, Cory S.; Thompson, Alison.
Benzyl 3,5-dimethyl-pyrrole-2-carboxylate (I), a very useful pyrrole in porphyrin and dipyrromethene synthesis, can be synthesized via the Knorr-type reaction, but in low yield. Alternative routes to I have been developed involving the trans-esterification of Et 3,5-dimethyl-pyrrole-2-carboxylate and the deacetylation of benzyl 4-acetyl-3,5-dimethyl-2-carboxylate, both precursors being easily obtained using the Knorr reaction. These traditional methods involve treatment of the known products with a strong basic solution or heating for extended periods which often lead to decomposition The use of microwave energy to promote these two reactions proves to be an extremely efficient way to obtain I quickly, in high yield, and in excellent purity with no need for recrystallization Of particular note is the use of catalytic sodium methoxide in benzyl alc., rather than stoichiometric amounts of sodium benzoxide, to effect benzylation.
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com