Cite

    Haifeng Zheng et al.. “Catalytic asymmetric [2+2] cycloaddition between quinones and fulvenes and a subsequent stereoselective isomerization to 2, 3-dihydrobenzofurans.” Chemical communications, vol. 53, no. 49, 2017, pp. 6585–6588. http://access.bl.uk/ark:/81055/vdc_100047119952.0x000054