- Highly Regioselective Synthesis of Trisubstituted Pyrrolidines by 1,3-Cycloaddition
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It has been found that N-trimethylsilylmethylamine reacts with unsymmetrical dipolarophiles to give 2,2,4- or 2,2,3-trisubstituted pyrrolidines in the presence of tetrabutylammonium fluoride or fluoroacetic acid, respect
- Imai, Nobuyuki,Achiwa, Kazuo
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p. 2646 - 2655
(2007/10/02)
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- HIGH REGIOSELECTIVITIES IN 1,3-CYCLOADDITION OF INTERMEDIARY CARBANIONS PROMOTED BY TETRABUTYLAMMONIUM FLUORIDE AND AZOMETHINE YLIDE CATALYZED BY TRIFLUOROACETIC ACID
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Tetrabutylammonium fluoride catalytically induced a regioselective 1,3-cycloaddition of the carbanions leading to 2,2,4-substituted pyrrolidines.And in the presence of trifluoroacetic acid, the corresponding 2,2,3-substituted products were regioselectivel
- Achiwa, Kazuo,Imai, Nobuyuki,Motoyama, Tadashi,Sekiya, Minoru
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p. 2041 - 2044
(2007/10/02)
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