Greener route for the synthesis of chromone using Amberlyst®15 via enaminones. - Sheelam, Kalidasu; Thota, Pradeepkumar; Kottawar, Shrinivas; Vinnakota, Srilalitha; Chidara, Sridhar; Yennam, Satyanarayana; Behera, Manoranjan (ARKIVOC: Online Journal of Organic Chemistry, 2022)