Cite

    Wen Si et al.. “High diastereoselective [4 + 2] annulation of β, γ-unsaturated α-keto esters and p-quinone methides: Approach to polysubstituted 4-aryl chromans and tetrahydroquinolines.” Tetrahedron letters, vol. 61, no. 31, 2020, p. . http://access.bl.uk/ark:/81055/vdc_100105148967.0x00005e