Naslov
Dimethyl carbonate reactions under microwave irradiation

Autori
Trošelj, Pavle ; Zrinski-Antonac, Irena ; Margetić, Davor ; Eckert-Maksić, Mirjana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
11th European Symposium on Organic Reactivity - Book of Abstracts / Concalves, Pedro M. L. ; Lurdes Cristiano, Maria S. - Faro : Digitalinvest, Lda, 2007

ISBN
978-972-9341-62-5

Skup
ESOR XI 11th European Symposium on Organic Reactivity

Mjesto i datum
Faro, Portugal, 01.07.2007. - 06.07.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Dimethyl carbonate; Microwave synthesis

Sažetak
Dimethyl carbonate is, according to its properties and nontoxicity, an environmentally attractive alternative for phosgene, methyl iodide and dimethyl sulfate in carboxy-methylation or methylation reactions. The influence of temperature and solvent (CH3CN) on reactions of dimethyl carbonate withsubstituted phenols and anilines, under microwave irradiation, was investigated. The main purpose was to explore dimethyl carbonate selectivity as methylating or carboxymethylating agent, toward aromatic oxygen or nitrogen nucleophiles. It is known that the use of microwave irradiation allows conduction of organic reactions at much higher temperatures thanboiling point of solvent, which leads to higher reaction rates. However, dymethyl carbonate is an ambient electrophile and higher temperatures reduce its selectivity in reactions of diamino (or dihydroxy) derivatives, gave complex mixtures of products.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA