Dhruva Kumar1, Hardeep Singh2 & Jagir S Sandhu3 2024. Efficient Reductive Amination Using Hantzsch 1,4-Dihydropyrindine as Organo Reducing Agent in the Presence of Sc(OTf)3 and Acidic Silica at Ambient Temperature. African Diaspora Journal of Mathematics ISSN: 1539-854X, Multidisciplinary UGC CARE GROUP I. 23, 6 (Jan. 2024), 51–58.