✦ LIBER ✦

A new method for the synthesis of nitrogen heterocycles via palladium catalyzed intramolecular hydroamination of allenes

✍ Scribed by Masaki Meguro; Yoshinori Yamamoto

Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 217 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)01044-2

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✦ Synopsis

The intramolecular hy&oamination of certain allenes, bearing amine or sulfonyl amide groups at the terminus of the carbon chain, IXOOuu~ smoothly in the presence of catalytic amounts of palladium complex ([(rl3-C3Hs)PdCl]2-dppf) under weakly acidic conditions ( 0.15-1.0 equivalent of acetic acid ) to give the corresponding 2-vinylpyrrolidines and 2-vinylpiperidines in good to high yield.

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