Asymmetric [3+2] Annulations of 1,4-Di-thiane-2,5-diol and N-Boc Aldimines Catalyzed by Tertiary-amine Thiourea
DONG Xu, FENG Boxu, CHEN Li, LI Xin
Chem. J. Chinese Universities . 2018, (8): 1707 -1712 .  DOI: 10.7503/cjcu20170847