A straightforward and effective strategy for the synthesis of novel 7-cyano-4-imino-3-phenyl-6-(pyrrolidin-1-yl)-2-substituted-3,4-dihydroselenopheno[3,2-d]pyrimidines have been accomplished through a base-promoted cascade addition/cyclization sequence employing phenyl isothiocyanate followed by S-alkylation obtained fused Se-containing heterocyclic framework with various alkyl halides. Free ra...

Acyclic asymmetric quaternary stereocenters, which are composed of four carbon-carbon bonds, were finely constructed by utilizing a face-selective alkylation enolate intermediates derived from an Michael addition reaction chiral lithium amide with trisubstituted (E)-α,β-unsaturated esters. The present was able to employ diverse alkyl halides as electrophile afford various adducts having all-car...

Aryl-substituted benzothiazoles and benzoxazoles are an important class of heterocyclic compound and have shown a wide range of biological activities, such as antitumor, antiviral, and antimicrobial activities. In addition, these compounds have become essential building blocks for the synthesis of conjugated functional materials, such as industrial dyes and plant growth regulators. The conventi...

Effects of N-dodecyl-N,N-dimethyl-N-benzylammonium halides (DBeAX) on thermotropic phase behavior of phosphatidylcholine/cholesterol bilayers as well as on 1H NMR spectra were studied. The surfactants were added either to the water phase or directly to the lipid phase (a mixed film was formed). The benzyl group, opposite to liposomes without cholesterol, is not incorporated into the bilayer in ...

Reaction of the doubly-bridged biscyclopentadienes (C5H4(EMe2))(C5H4(SiMe2)) (E = Si(1a), or C(1b)) with Re2(CO)10 in refluxing mesitylene gave the corresponding dirhenium carbonyl complexes [(η(5)-C5H3)2(EMe2)(SiMe2)][Re(CO)3]2 (trans-2a,b and cis-2a,b), and the desilylated products [(η(5)-C5H4)2(EMe2)][Re(CO)3]2 (3a,b). Photolysis of trans-2a,b with a series of aryl halides in benzene results...