The title mol-ecule, C(30)H(24)O(4), lies about an inversion center located at the mid-point of the central C=C bond. The diphenyl-methanone unit adopts an all-trans conformation. The dihedral angle between the adjacent rings is 53.57 (4)°.

Precursor-fed cultivation of endophytic Chaetomium globosum 1C51 afforded nine novel "unnatural" halogenated chaetoglobosins including those with more preferable immunosuppressive activity.

Reduced downstream costs, together with high purity recovery of polyhydroxyalkanoate (PHA), will accelerate the commercialization of high quality PHA-based products. In this work, a process was designed for effective recovery of the copolymer poly(hydroxybutyrate-co-hydroxyhexanoate) (P(HB-co-HHx)) containing high levels of HHx (>15 mol%) from Ralstonia eutropha biomass using non-halogenated so...

We report a series of NFAs (namely BTP-1V, BTP-2V, BTP-3V, and BTP-4V) by inserting vinylene ?-bridges between the Y-series central fused core non-halogenated end group IC.

Quantum Dots In article number 2101138, Yurui Xue, Feng He, Yuliang Li and co-workers demonstrate controllable growth of iridium oxide quantum dots by exploiting the unique properties graphdiyne. This provides an ideal system to control preparation small size, dot catalysts, fully demonstrating size effects these catalysts in catalytic process, obtaining highly active robust with excellent acid...

In connection with our chemotaxonomic studies of Malaysian species of the red algal genus Laurencia, the chemical composition of Laurencia pannosa Zanardini was examined. Two halogenated sesquiterpenoids, named pannosanol (1) and pannosane (2), have been isolated along with a halogenated C15-acetogenin, (3Z)-chlorofucin (3). The structures of these compounds were determined from their spectrosc...

A highly regio- and diastereo-selective synthesis of halogenated C-vinyl glycosides has been achieved from glycals and unactivated aryl acetylenes in the presence of halogenated Lewis acids via a tandem glycosylation-halogenation reaction. The Lewis acid used served the dual purpose of activating the allylic acetoxy group of glycals and serving as halogen source for Markovnikov addition across ...

In 1 957 lepromatous patients were selected for a trial of diphenylthiourea (DPT or Ciba 1 906) and its effects were compared with the results obtained with diamino-diphenyl-sulphone (DDS) . The results were analysed at the end of two years when the project was stopped and all cases were placed on DDS. The subsequent history of the cases were investigated after six years ( i .e . in 1 963) . Th...