Hasan, Mohammed published the artcileSterically Congested Chiral 7,8-Dioxa[6]helicene and Its Dihydro Analogues: Synthesis, Regioselective Functionalization, and Unexpected Domino Prins Reaction, Product Details of C10H15ClO3S, the publication is European Journal of Organic Chemistry (2015), 2015(17), 3702-3712, database is CAplus.
A C2-sym. 7,8-dioxa[6]helicene-2,13-diol was synthesized from readily available 2,7-dihydroxynaphthalene on a gram scale. A high-yielding synthetic strategy for the regioselective hydroxymethylation at the sterically most hindered C1 position of diol analogs I (R = tosyl, (+)-(1S)-10-Camphorsulfonyl, (-)-(1S)-Camphanoyl) was investigated. The dioxa[6]helicene backbone with configurationally stable helical enantiomers II was synthesized, and these enantiomers were separated by HPLC on a chiral stationary phase. An unexpected domino Prins reaction was also observed This is the first report of a domino Prins reaction occurring on a helicene. Along with the high-yielding regioselective functionalization of dioxa[6]helicene analogs, the synthesis of a few cis-7a,14c-dihydro-functionalized helicenoid diols, e.g., III, substituted at the sterically most hindered C1 and C14 positions in their racemic forms was explored.
European Journal of Organic Chemistry published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Product Details of C10H15ClO3S.
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