In all three structures the alkene ligand is η2-bonded to one Os atom but the differing relative positions of the bromine atoms have a significant effect on the C-C alkene distance. The outcome of the reactions studied is interpreted in terms of the stabilising effect of the CF3 subtitu...
It binds ethylene trans to hydride, and additional ethylene is catalytically dimerized to and -but-2-ene at 30 °C in CHF/toluene; this dimerization is slower in CHClsolvent. Propylene and HCCHF also bind to RuH(CO)Ltrans to hydride, and the latter is converted to ethylene and Ru/F ...
An uncatalyzed intramolecular carbonyl-ene reaction and a ring-closing metathesis were ... H Helmboldt,M Hiersemann - 《Journal of Organic Chemistry》 被引量: 42发表: 2009年 Antibacterial diterpenoids from Jatropha podagrica Hook Japodagrin ( 1) and japodagrone ( 2), two macrocylic ...
In the crystal, molecules are linked by N—H⋯S hydrogen bonds, forming inversion dimers with an R22(8) ring motif.Arafath, M.A.Kwong, H.C.Adam, F.Razali, M.R.Acta Crystallographica Section E: Crystallographic Communications
b, Same as in a, but for the WHDs of the Orc1–Orc5 subunits. c, Distribution of the HTH motifs of WHDs around the origin DNA. The WHDs of the Orc1–Orc5 subunits are shown in cartoon representation with the HTH motifs highlighted. d, Domain swapping between the AAA+ and WHD ...
Each sisal leaf contains an average of approximately 1000 fibres, which account for only approximately 4% of the plant by weight but help the leaves maintain their strong texture34. Because of its good mechanical properties and porous structure, sisal leaf is a promis- ing candidate for the ...
Novel class of 7-Oxabicyclo[2.2.1]heptene sulfonamides with long alkyl chains displaying improved estrogen receptor alpha degradation activity Structure-activity relationshipsHormone therapy is widely used in clinic for breast cancer treatment, such as tamoxifen, but long-term use can cause drug ... ...
Crystal Structure and Conformational Analysis of 4-[(p-N,N-Dimethylamino) benzylidene]-2-(3,5-dinitrophenyl)oxazole-5-one Toyota's Corolla replacement the Auris, starts to give a good account of itself. First impressions didn't really impress. But what first appeared to be a b... Resul,...
Reductive desymmetrization of 2,2-disubstituted prochiral 1,3-cyclodiketones to 2,2-disubstituted-3-hydroxycycloketones is a highly desired transformation for the construction of complex molecules with multiple chiral centres, but the generation of a single stereoisomer is difficult and an extremely ch...
Photoelectron spectroscopy and electronic structure of the hexaphosphatitanocene [Ti(5-P3C2But2)2] Density functional calculations on [Ti(n5-P3C2Bu12) 2] gave estimates of structural parameters in excellent agreement with experiment and predicted a diamagnetic ground state as has been found. Back...