Abstract: This invention discloses a novel cationic photoinitiator and a preparation method and use thereof. The cationic photoinitiator has a structure as represented by general formula (I) below. It can match a longer absorption wavelength in the process of application and has an outstanding photosensitive property, and has characteristics of no proneness to migration and good yellowing resistance.

Abstract: Disclosed are polycationic polymers. The polycationic polymers can include a plurality of positively charged centers, each of which is formed by condensation of cyclic bis-electrophile (e.g., a 9-thia/aza/selenabicyclo[3.3.1]nonyl electrophile) with a nucleophile. The resulting polycationic polymers can efficiently bind nucleic acids. The polycations can also exhibit properties of cytotoxicity and DNA transfection with interesting structure-activity characteristics.

Abstract: Efficient method for preparing sulfonium photoacid generators (PAGs) by microwave-assisted reaction of diarylsufides in the presence of alkylaryliodonium salts. Microwave-assisted synthesis of the PAGs is significantly faster, reducing reaction time with less energy consumption. Reaction times using the microwave-assisted synthesis are in a range of from 90 to 420 faster than conventional thermal conditions. The photoacid quantum yields of several salts prepared by the microwave reaction were measured; the photoacid quantum yields of new sulfonium PAGs were in a range from 0.01 to 0.4 times greater than yields from conventional synthesis. Incorporating a nitro group in the structures of the sulfonium salts increased photoacid quantum yield, induced intersystem crossing and increased the efficiency of photoacid generation compounds.

Abstract: The invention concerns a method and a system for producing a signal, in particular an electric signal, or a substance having a coagulating or anticoagulant effect. The method is characterised in that it is based on a source substance with coagulating effect, in particular, Ca++ ions, or an anticoagulant affect, in particular heparin. The method consists in: transforming the electromagnetic field derived from said source substance located in the chamber, into a signal, in particular an electric signal, using a transducer-receiver sensing the electromagnetic field; applying to a receiving substance located in the chamber, in particular water or a water-ethanol mixture or homeopathic granules, said signal derived from said transducer-receiver, using a transducer-transmitter. After said treatment, the receiving substance, initially inactive, has a coagulating or anticoagulant effect.

Abstract: The present invention relates to zinc amide bases of the general formula (I) (R1R2N)2—Zn.aMgX12.bLiX2??(I) wherein R1 and R2 are each independently selected from substituted or unsubstituted, linear or branched alkyl, alkenyl, alkynyl or silyl derivatives thereof, and substituted or unsubstituted aryl or heteroaryl, and wherein R1 and R2 can form together a ring structure, or R1 and/or R2 can be part of a polymer structure; X12 is a divalent anion or two monovalent anions that are independent from each other; X2 is a monovalent anion; a is >0; and b is >0. The zinc amide bases can be used, amongst other things, for deprotonation and metallization of aromatics.

Abstract: Polymers and copolymers having units derived from unsubstituted or substituted thieno[3,4-b]furan are disclosed. Also provided are methods of making and using the same.

Abstract: A reverse synthetic strategy for making organic non-linear optical chromophores involves building up the chromophore from the electron-withdrawing end toward the electron-donating end.

Abstract: The invention describes a method for effecting intramolecular cyclization reactions using light, in the absence of radical initiators, to provide useful polycyclic compounds.

Abstract: The present invention is draw to microwave heating of a transition metal-catalysed organic reaction, in which a catalyst complex between a transition metal and an auxiliary ligand or ligands, the ligand being asymmetric or symmetric, monodentate or bidentate, results in highly chemoselective, regioselective, and stereoselective allylic substitution reactions. Molybdenum or palladium complexes form suitable catalytic systems with a plethora of ligands in a variety of solvents for such microwave facilitated nucleophilic substitution reactions.