Ozonolysis of a series of 1-substituted indenes. The substituent steric effects on the ozonide exo/endo ratios
作者:Masahiro Miura、Masatomo Nojima、Shigekazu Kusabayashi、Kevin J. McCullough
DOI:10.1021/ja00322a032
日期:1984.5
Ozonolyse d'une serie d'indenes disubstitues (-1,2 et -1,3) et trisubstitues (-1,2,3) dans CCl 4
Ozonolyse d'une serie d'indenes dissubstitues (-1,2 et -1,3) et trisubstitues (-1,2,3) dans CCl 4
Asymmetric Hydrogenation of Allylic Alcohols Using Ir–N,P-Complexes
作者:Jia-Qi Li、Jianguo Liu、Suppachai Krajangsri、Napasawan Chumnanvej、Thishana Singh、Pher G. Andersson
DOI:10.1021/acscatal.6b02456
日期:2016.12.2
γ-disubstituted and β,γ-disubstituted allylicalcohols were prepared and successfully hydrogenated using suitable N,P-based Ir complexes. High yields and excellent enantioselectivities were obtained for most of the substrates studied. This investigation also revealed the effect of the acidity of the N,P–Ir-complexes on the acid-sensitive allylicalcohols. DFT ΔpKa calculations were used to explain the effect of
Synthesis of Substituted Indenes through Iron-Catalyzed Annulation of Benzylic Alcohols with Alkynes
作者:Xiuli Bu、Jianquan Hong、Xigeng Zhou
DOI:10.1002/adsc.201100065
日期:2011.8
A convenient and efficient method for the synthesis of polysubstituted indenes has been developed by the iron(III) trichloride-catalyzed tandem mono- and dibenzylation/cyclization reactions of benzylicalcohols with alkynes. This method is featured with the easily available starting materials, cheap catalyst, simple manipulation and mild conditions.
The annulative coupling of secondary benzyl alcohols with internal alkynes efficiently proceeds in the presence of a silver catalyst. The reaction gives 1,2,3-substituted indene derivatives selecti...
The reduction at a mercury electrode in dimethylformamide of five variously substituted indenes bearing at least one (acidic) hydrogen at C(1) was carried out, under self-protonation conditions and in the presence of phenol as a proton donor. Reduction occurred exclusively at the C(2)–C(3) double bond of the five-membered ring and afforded the corresponding indans of various configurations, with a