SDS of cas: 119-61-9. Stasiak, B; Czapik, A; Kwit, M in [Stasiak, Bartosz; Czapik, Agnieszka; Kwit, Marcin] Adam Mickiewicz Univ, Fac Chem, PL-61614 Poznan, Poland; [Kwit, Marcin] Adam Mickiewicz Univ, Ctr Adv Technol, PL-61614 Poznan, Poland published Dynamic Induction of Optical Activity in Triarylmethanols and Their Carbocations in 2021.0, Cited 81.0. The Name is Benzophenone. Through research, I have a further understanding and discovery of 119-61-9.
A series of artificial triarylmethanols has been synthesized and studied toward the possibility of exhibiting an induced optical activity. The observed chiroptical response of these compounds resulted from the chiral conformation of a triarylmethyl core. The chirality induction from a permanent chirality element to the liable triarylmethyl core proceeds as a cooperative and cascade process. The OH center dot center dot center dot O(R) and/or (H)O center dot center dot center dot HorthoC hydrogen bond formation along with the C-H center dot center dot center dot pi interactions seem to be the most important factors that control efficiency of the chirality induction. The position of chiral and methoxy electron-donating groups within a trityl skeleton affects the amplitude of observed Cotton effects and stability of the trityl carbocations. In the neutral environment, the most intense Cotton effects are observed for ortho-substituted derivatives, which undergo a rapid decomposition associated with the complete decay of ECD signals upon acidification. From all of the in situ generated stable carbocations, only two exhibit intense Cotton effects in the low energy region at around 450 nm. The formation of carbocations is reversible; after alkalization, the ions return to the original neutral forms. Unlike most triarylmethyl derivatives known so far, in the crystal, the triarylmethanol, para-substituted with the chiral moiety, shows a propensity for a solid-state sorting phenomenon.
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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem