There is provided herein a process for the synthesis of sulfonyl silanes. There is also provided herein various sulfenylated and sulfonylated silicon-containing compounds made by the process.

A compound of Formula I: ##STR00001##
wherein Y is O, S, or Se;
wherein each X.sup.1-X.sup.14 is independently C or N;
wherein two consecutive X.sup.1-X.sup.14 in the same ring are not N;
wherein any of X.sup.1-X.sup.14 is C when it forms a direct bond to R.sup.A, R.sup.B, R.sup.C, or R.sup.D;
wherein R.sup.A, R.sup.B, R.sup.C, and R.sup.D each independently represent mono to the maximum allowable substitution, or no substitution;
wherein each R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
wherein R.sup.D represents mono to the maximum allowable substitution at least one R.sup.D is not hydrogen; and
wherein any two substituents are optionally joined or fused together to form a ring.

An organic electroluminescence device includes: an anode; a cathode; a first emitting layer; and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains, as a first host material, a first compound that has at least one group represented by a formula (11) below and that is represented by a formula (1) below, the second emitting layer contains, as a second host material, a second compound represented by one of formulae (2-1A) to (2-4A) below, and the first emitting layer and the second emitting layer are in direct contact with each other.

##STR00001## ##STR00002##

The present disclosure relates to organometallic compounds and formulations and their various uses including as hosts or emitters in devices such as organic light emitting diodes and related electronic devices. In particular, the present disclosure provides are compounds having the structure of Formula I as defined herein. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

Provided are novel silyl-containing acetylacetonate derivatives compounds. Also provided are formulations comprising these silyl-containing acetylacetonate derivatives compounds. Further provided are OLEDs and related consumer products that utilize these silyl-containing acetylacetonate derivatives compounds.

Provided herein are curable compositions for use in a high temperature lithography-based photopolymerization process, and telechelic block polymers and methods of using such polymers in curable compositions to produce medical devices such as orthodontic appliances comprising the polymeric compositions comprising the telechelic block polymers.

The disclosure provides therapeutic compositions (i.e., therapeutic agents) and methods of preventing or treating Friedreich's ataxia in a mammalian subject, reducing risk factors, signs and/or symptoms associated with Friedreich's ataxia (e.g., Complex I deficiency), and/or reducing the likelihood or severity of Friedreich's ataxia. The disclosure further provides novel intermediates for the production of said therapeutic compositions and related reduced versions of said therapeutic compositions, which reduce forms may also be used as therapeutic agents (or prodrugs of the therapeutic agent(s)).

An organic electroluminescence device includes an anode, a cathode, a first emitting layer, and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains, as a first host material, a first compound represented by a formula (1) below and having a group represented by a formula (11) below, the second emitting layer contains a second compound represented by one of formulae (2-1D) to (2-4D) below as a second host material, and the first emitting layer is in direct contact with the second emitting layer.

##STR00001## ##STR00002##

The present invention provides a compound that have excellent harmful arthropod controlling effects, the compounds being represented by formula (I) [wherein R represents a C1-C6 chain hydrocarbon group etc., X represents a C1-C4 chain hydrocarbon group etc., G represents a C1-C4 chain hydrocarbon group etc., and n is 0, 1, 2, or 3], as well as a composition for controlling harmful arthropod comprising the same, and a method for controlling harmful arthropod comprising applying the same. ##STR00001##

Provided are a monoamine compound and an organic electroluminescence device including the same. The monoamine compound according to an example embodiment is represented by the following Formula 1 ##STR00001##