Design and synthesis of PDSPTCF as an influential Brønsted-Lewis acidic catalyst for the producing benzo[a]benzo[6,7]chromeno[2,3-c]phenazines. - Ghribi W; Al-Ibadi M; Ganesan S; Kumar MR; Jadeja Y; Chohan JS; Chahar M; Verma R; Sapaev IB; Kumar A (Scientific reports, 2024)