692746-94-4Relevant academic research and scientific papers
Rhodium-catalyzed domino conjugate addition-cyclization reactions for the synthesis of a variety of N- and O-heterocycles: Arylboroxines as effective carbon nucleophiles
Park, Ja Ock,Youn, So Won
supporting information; experimental part, p. 2258 - 2261 (2010/07/17)
Facile and efficient Rh(I)-catalyzed domino conjugate addition-cyclization reactions of olefins bearing two electrophilic sites and a pendant nucleophile with organoboroxines have been developed to afford a variety of N- and O-heterocycles, such as 3,4-dihydroquinolin-2(1H)-ones, 3,4-dihydrocoumarins, and pyrrolidin-2-ones, which constitute important motifs in biologically active natural and synthetic organic compounds.
Copper-catalyzed intramolecular N-arylation of ureas in water: a novel entry to benzoimidazolones
Barbero, Nekane,Carril, Mónica,SanMartin, Raul,Domínguez, Esther
, p. 7283 - 7288 (2008/09/21)
The copper-catalyzed intramolecular N-arylation of 2-bromoarylureas performed in water leading to the benzo[d]imidazolone framework is reported. The scope of the methodology presented herein proved to?be broad and afforded a significant number of benzoimidazolones in good to excellent yields. The reported protocol is based on the use of CuI and TMEDA acting both as the ligand and as the base in a water solution, which allows for the easy separation of the catalyst containing aqueous phase from the products by simple extraction. Additionally, the N- versus O-arylation competitive processes are also discussed.
Synthesis of N-Benzylated Anilines from the Reaction of Anilines and Benzyl Chloroformate
Pati, Hari,Weisbruch, Paul,Lemon, Adrienne,Lee, Moses
, p. 933 - 940 (2007/10/03)
Reactions of benzyl chloroformate with a series of substituted anilines produced N-carbobenzyloxy "CBZ" products along with the unexpected N-benzylated "Bn" compounds. Reaction of aniline, 1a, gave the CBZ, or 2a, and Bn, or 3a, products in 29% and 14% yi
