不应该啊,要么是题目有问题,要么是你哪里搞错了。第一个7.2的单峰有可能是CDCl3的溶剂峰?第二个就不知道了。
Sources:
Heidrich M, Bergmann M, Müller‐Borges D, et al. Bispentiptycenyl‐N‐Heterocyclic Carbene (NHC) Gold Complexes: Highly Active Catalysts for the Room Temperature Hydration of Alkynes[J]. Advanced Synthesis & Catalysis, 2018, 360(18): 3572-3578.
Lin C Y, Yang P S, Chou P Y, et al. Chemoselective oxidation and deprotection of para-methoxybenzylic position with (diacetoxyiodo) benzene in acetic-trifluoroacetic acid[J]. Tetrahedron Letters, 2018, 59(4): 365-367.
Sources:
Heidrich M, Bergmann M, Müller‐Borges D, et al. Bispentiptycenyl‐N‐Heterocyclic Carbene (NHC) Gold Complexes: Highly Active Catalysts for the Room Temperature Hydration of Alkynes[J]. Advanced Synthesis & Catalysis, 2018, 360(18): 3572-3578.
Lin C Y, Yang P S, Chou P Y, et al. Chemoselective oxidation and deprotection of para-methoxybenzylic position with (diacetoxyiodo) benzene in acetic-trifluoroacetic acid[J]. Tetrahedron Letters, 2018, 59(4): 365-367.