From the roots of Sanguisorba alpina, a new triterpenoid was isolated and identified as 2-isobutyryloxy-19α, 25-dihydroxyursa-1, 12-dien-28-oic acid by means o
Fe<sub>3</sub>(CO)<sub>12</sub>-derived Fe/r-AL<sub>2</sub>O<sub>3</sub> and Fe/zeolite catalysts have higher catalytic activity than those derived from Fe(NO<sub>
Based on X<sub>α</sub> multiple scattering one-electron wave functions, a way for solvingthe many-electron Schrodinger equation by means of irreducible tensor
Three new bicyclooctanoid neolignans, kadsurenin A, kadsurenin B and kadsurenin C were isolated from Piper kadsura (Choisy) Ohwi. Based on the spectroscopic analy
Reduction of the title compounds with LiAIH<sub>4</sub> or DIBAL (diisobutyl aluminium hydride) leads to the formation of 2-(disubstituted hydroxymethyl)cyclopropan