REACTIVITY OF LANTHANIDE(II) ACETYLIDES G ENERATED FROM LANTHANIDE-BENZOPHENONE COMPLEXES AND 1-ALKYNES

Authors
MAKIOKA Y TAKAKI K TANIGUCHI Y FUJIWARA Y
Citation
Y. Makioka et al., REACTIVITY OF LANTHANIDE(II) ACETYLIDES G ENERATED FROM LANTHANIDE-BENZOPHENONE COMPLEXES AND 1-ALKYNES, Nippon kagaku kaishi, (4), 1996, pp. 424-426
Citations number
12
Categorie Soggetti
Chemistry
Journal title
Nippon kagaku kaishi → ACNP
ISSN journal
03694577
Issue
4
Year of publication
1996
Pages
424 - 426
Database
ISI
SICI code
0369-4577(1996):4<424:ROLAGE>2.0.ZU;2-U
Abstract
Ytterbium and samarium-benzophenone complexes react with 1-alkynes to generate lanthanide(II) acetylides having diphenylmethoxo ligand. It h as been found that these acetylides act as reductants as well as nucle ophiles, depending on the electrophiles used. Thus, their reaction wit h aldehydes and aliphatic ketones gives propargylic alcohols in good y ields, while, with aromatic ketones and alkyl halide, the reductive co upling products are obtained selectively.