1038996-87-0Relevant articles and documents
Synthesis of Sulfones via Ru(II)-Catalyzed Sulfination of Boronic Acids
Gulbe, Krista,Turks, Mā ris
, p. 5660 - 5669 (2020/05/19)
Ruthenium(II) complexes catalyze the insertion of sulfur dioxide into (het)aryl and alkenyl boronic acids. The transmetalation-sulfination process proceeds with DABSO in the presence of 5 mol % RuCl2(PPh3)3 in methanol at 100 °C. The intermediate sulfinate salt can be quenched with various electrophiles such as alkyl halides, epoxides, Michael acceptors, and λ3-iodanes in moderate to good yields. The reported sulfone synthesis can be performed either as a direct one-pot or one-pot two-step procedure depending on the reactivity of the electrophile.
A new method for the preparation of (E)-2-(styrylsulfonyl)acetic acid esters and their reactions with hydrazine hydrate
Nguyen, Son T.,Peet, Norton P.
experimental part, p. 1205 - 1207 (2011/06/17)
A new route to esters of (E)-2-(styrylsulfonyl)acetic acid has been developed. Treatment of the methyl ester with hydrazine hydrate gave the six-membered 4-amino-5-phenylthiomorpholine-3-one 1,1-dioxide (1), and not the seven-membered 6-phenyl-1,4,5-thiad