4195-17-9Relevant articles and documents
Efficient mitomycin C coupling with stable p-nitrophenyl-benzyl carbonates using N-hydroxybenzotriazole as a catalytic additive
Dubowchik, Gene M.,King, H. Dalton,Pham-Kaplita, Kahnie
, p. 5261 - 5264 (1997)
Mitomycin C benzyl carbamates were prepared in high yield from stable p-nitrophenyl carbonates in the presence of catalytic amounts of 1-hydroxybenzotriazole/diisopropylethylamine in DMF.
Enantioselective, Lewis Base-Catalyzed, Intermolecular Sulfenoamination of Alkenes
Roth, Aaron,Denmark, Scott E.
supporting information, p. 13767 - 13771 (2019/09/10)
A method for the catalytic, enantioselective, intermolecular, 1,2-sulfenoamination of alkenes is described. Functionalization is achieved through the intermediacy of an enantioenriched, configurationally stable thiiranium ion generated by Lewis base activation of a readily available sulfur electrophile. A diverse set of anilines and benzylamines react with different styrenes to afford products in good yield and stereoselectivity. Downstream manipulation of the products is facilitated by deprotonation of the amines to enable carbon-sulfur bond cleavage.
Erbium(III) chloride: A very active acylation catalyst
Dalpozzo, Renato,De Nino, Antonio,Maiuolo, Loredana,Oliverio, Manuela,Procopio, Antonio,Russo, Beatrice,Tocci, Amedeo
, p. 75 - 79 (2008/02/10)
Erbium(iii) chloride is a powerful catalyst for the acylation of alcohols and phenols. The reaction works well for a large variety of simple and functionalized substrates by using different kinds of acidic anhydrides (Ac 2O, (EtCO)2O, (PriCO)2O, (Bu tCO)2O, and (CF3CO)2), without isomerization of chiral centres. Moreover, the catalyst can be easily recycled and reused without significant loss of activity. CSIRO 2007.