Effective Monoallylation of Anilines Catalyzed by Supported KF
摘要:
A mild and straightforward monoallylation procedure for different anilines is described using the efficient, inexpensive, noncorrosive, and environmentally friendly reagent KF-Celite. By using only a 1/1.2 stoichiometric ratio of electrophilic reagent to aniline, in very short reaction times, the monoallylated products are obtained in high isolated yields via this procedure, which works very effectively regardless of the electronic nature of the substituent on the ring, although electron withdrawing groups make the reactions go even faster.
Effective Monoallylation of Anilines Catalyzed by Supported KF
作者:Vittorio Pace、Fernando Martínez、María Fernández、Jose V. Sinisterra、Andrés R. Alcántara
DOI:10.1021/ol070890o
日期:2007.7.1
A mild and straightforward monoallylation procedure for different anilines is described using the efficient, inexpensive, noncorrosive, and environmentally friendly reagent KF-Celite. By using only a 1/1.2 stoichiometric ratio of electrophilic reagent to aniline, in very short reaction times, the monoallylated products are obtained in high isolated yields via this procedure, which works very effectively regardless of the electronic nature of the substituent on the ring, although electron withdrawing groups make the reactions go even faster.
Highly Efficient Synthesis of New α-Arylamino-αâ²-chloropropan-2-ones via Oxidative Hydrolysis of Vinyl Chlorides Promoted by Calcium Hypochlorite
The oxidative hydrolysis of different trifluoroacetyl-protected N-(2-chloroallyl)anilines, promoted by calcium hypochlorite, is able to yield several not previously described α-arylamino-α′-chloropropan-2-ones, very valuable building blocks that are useful as precursors of several drugs, in excellent yields and short reaction times. The main requirement of the reaction for avoiding the undesired aromatic