5650-51-1Relevant articles and documents
Recyclable Hypervalent-Iodine-Mediated Dehydrogenative α,β′-Bifunctionalization of β-Keto Esters under Metal-Free Conditions
Duan, Ya-Nan,Cui, Li-Qian,Zuo, Lin-Hong,Zhang, Chi
supporting information, p. 13052 - 13057 (2015/09/07)
We have developed a method for recyclable hypervalent-iodine-mediated direct dehydrogenative α,β′- bifunctionalization of β-ketoesters and β-diketones under metal-free conditions, which affords a straightforward way to synthesize benzo-fused 2,3-dihydrofurans. This efficient, mild method, which has a wide substrate scope and good functional-group tolerance, was used for the multistep synthesis of the protected aglycone of a naturally occurring phenolic glycoside. A mechanism involving Michael addition to an enone intermediate and subsequent oxidative cyclization is proposed.
HIV protease inhibitors
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Page/Page column 74-75, (2008/06/13)
Compounds of the formula (I): Wherein R1, R2, X and N are as defined in the specification; E is N, CH; A1 and A" are terminal groups as defined in the specification. The compounds have utility as HIV-I protease inhibitors.
Rh(I)-catalyzed cyclization of 1-arylprop-2-yn-1-ol derivatives utilizing rhodium 1,4-migration
Yamabe, Hokuto,Mizuno, Akio,Kusama, Hiroyuki,Iwasawa, Nobuharu
, p. 3248 - 3249 (2007/10/03)
A highly useful method for the construction of cyclopentanone derivatives fused with aromatic ring based on hydrorhodation-1,4-rhodium migration sequence is achieved. Treatment of 1-aryl-prop-2-yn-1-ols, which are easily accessible via an addition of acetylides to the corresponding aryl aldehydes, with a catalytic amount of [Rh(cod)2]2(BF4) and P(p-tolyl)3 in the presence of a base gives cyclopentanone derivatives in moderate to good yield. Copyright