ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Effect of Ultrasound on the Arylation of Methylene-Active Compounds with 4-Iodotoluene

M. Mečiarová, B. Jakubíková, Š. Toma, and D. Loos

Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, SK-842 15 Bratislava

Abstract: Ultrasound slightly accelerates the arylation of malonodinitrile and ethyl cyanoacetate with 4-iodotoluene under CuI and K₂CO₃ catalysis. Sonochemical reactions gave reasonable yields of the products even at 40°C for 3-4 h, while the silent reactions had to be performed at 120°C for 20-40 h. Reactions with other methylene-active compounds were also examined.

Full paper in Portable Document Format: 524a222.pdf

Chemical Papers 52 (4) 222–225 (1998)