Simple Syntheses of Two New Benzo-Fused Macrocycles Incorporating Chalcone Moiety

Rina Mondal; Swati Samanta; Saheli Sarkar; Asok K Mallik

doi:10.1155/2014/485014

Simple Syntheses of Two New Benzo-Fused Macrocycles Incorporating Chalcone Moiety

Int Sch Res Notices. 2014 Oct 29:2014:485014. doi: 10.1155/2014/485014. eCollection 2014.

Authors

Rina Mondal¹, Swati Samanta¹, Saheli Sarkar¹, Asok K Mallik¹

Affiliation

¹ Department of Chemistry, Jadavpur University, Kolkata 700 032, India.

Abstract

Simple syntheses of the benzo-fused 26-membered macrocyclic bischalcone (19E,43E)-2.11.27.36-tetroxaheptacyclo[44.4.0.0(4,9).0(12,17).0(21,26).0(29,34).0(37,42)]pentaconta-1(46),4(9),5,7,12(17),13,15,19,21,23,25,29,31,33,37,39,41,43,47,49-icosaene-18,45-dione (3) and the benzo-fused 13-membered macrocyclic chalcone (19E)-2.11-dioxatetracyclo[19.4.0.0(4,9).0(12,17)]pentacosa-1(25),4(9),5,7,12(17),13,15,19,21,23-decaen-18-one (5) using very common starting materials and reagents are described. The compounds are new and they have been characterized from their analytical and spectral data.