408523-27-3Relevant academic research and scientific papers
NEW ALPHA2 ADRENOCEPTOR AGONISTS
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Page/Page column 36, (2013/10/22)
Compounds of formula (I), wherein X and R1-R6, are as defined in the claims, exhibit alpha2 agonistic activity and thus useful as alpha2 agonists, especially as alpha2A agonists. Methods of use of said compounds are also provided.
Copper(I) tert-butoxide-promoted coupling of o-(1-hydroxyalkyl)arylsilanes with organic halides
Taguchi, Haruhiko,Takami, Kazuto,Tsubouchi, Akira,Takeda, Takeshi
, p. 429 - 432 (2007/10/03)
Copper(I) tert-butoxide-promoted coupling of arylsilanes possessing a 1-hydroxyalkyl group at the o-position with organic halides proceeded to give disubstituted arenes. The results indicate that an intermediary arylcopper species is formed by aromatic Csp2-to-O silyl migration.
Generation of allyl- and benzyllithiums from the corresponding halides by the aid of lithium-tellurium exchange reactions
Kanda, Takahiro,Kato, Shinzi,Sugino, Takushi,Kambe, Nobuaki,Sonoda, Noboru
, p. 71 - 84 (2007/10/02)
A variety of allyl- and benzyllithiums were prepared by lithium-tellurium exchange reactions of allylic and benzylic tellurides generated in situ from the corresponding halides.The produced organolithiums were trapped successfully with electrophiles such as aldehydes, ketones, and trimethylchlorosilane.Benzyllithiums having an alkyl, alkoxy,fluoro, chloro, or cyano substituent(s) on their aromatic ring were generated efficiently in THF.Benzylic tellurides bearing a bromo or iodo substituent afforded a mixture of products under similar conditions arising from the competing lithium-halogen exchange and/or the displacement of the halogen atom with organolithiums used, but they were converted selectively to benzyllithiums in ether without affecting halogen substituents on the benzene ring.Several allyllithiums including dilithioisobutene were generated from allylic halides in a similar way via allylic tellurides.Wurtz-type coupling was negligible in any reactions examined. Key words: Tellurium; Lithium; Allyl; Benzyl; Halide
