Dong, X. Q., Fang, X., Tao, H. Y., Zhou, X., Wang, C. J.*, Highly Efficient Catalytic Asymmetric Sulfa ‐ Michael Addition of Thiols to trans ‐ 4, 4, 4 ‐ Trifluorocrotonoylpyrazole. Adv. Syn. & Catalysis, 2012, 354, 1141- 1147.