The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.

Provided herein is a method for cleaning a wafer having a fine uneven surface pattern that at least partially contains a silicon element using a wafer cleaning device that includes a vinyl chloride resin as a liquid contacting member, the method including retaining a water-repellent protective film-forming chemical in at least a recessed portion of the uneven pattern to form a water-repellent protective film on a surface of the recessed portion, the water-repellent protective film-forming chemical containing: a monoalkoxysilane represented by the following general formula [1],

(R.sup.1).sub.aSi(H).sub.3-a(OR.sup.2)  [1]; a sulfonic acid represented by the following general formula [2],

R.sup.3—S(═O).sub.2OH  [2]; and a diluting solvent, wherein the diluting solvent contains 80 to 100 mass % of alcohol with respect to the total 100 mass % of the diluting solvent.

This disclosure relates to polymer coatings with desirable anti-fouling properties. In certain embodiments, polymers are coated on particles which allow for conjugation with targeting moieties. In certain embodiments, the particles are nanoparticles with targeting moieties that bind with tumor associated antigens.

An organic light emitting device including an anode; a hole transport region on the anode; an emission layer on the hole transport region; an electron transport region on the emission layer; and a cathode on the electron transport region, wherein the hole transport region includes: a first hole transport layer including a first hole transport material represented by the following Formula 1 or a second hole transport material represented by the following Formula 2; and a second hole transport layer on the first hole transport layer, the second hole transport layer including a third hole transport material represented by the following Formula 3 or a fourth hole transport material represented by the following Formula 4:

##STR00001##

An amine derivative represented by the following General Formula (1) is provided. ##STR00001##
In the above General Formula (1), Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, at least one of Ar1, Ar2 and Ar3 is substituted with a substituted or unsubstituted silyl group, and L is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group.

An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar.sub.1 to Ar.sub.4 is a heterocyclic group represented by the following formula (2) wherein X.sub.1 is an oxygen atom or a sulfur atom. ##STR00001##

Provided is an electrolyte salt comprising a quaternary ammonium cation indicated by formula (1) and a trimethylsilyl alkanesulfonate anion indicated by formula (2). ##STR00001##
(In the formula, R.sup.1-R.sup.4 each independently indicate a C1-4 alkyl group or an alkoxyalkyl group indicated by —(CH.sub.2).sub.n—OR. Any two among R.sup.1-R.sup.4 can mutually bond and form a ring together with a nitrogen atom to which same have bonded. The remaining two can mutually bond and form a spiro ring having a nitrogen atom as the spiro atom therefor. R indicates a methyl group or an ethyl group. n indicates 1 or 2 and m indicates 2 or 3.)

To provide a method for producing a silicon compound, whereby a hydrosilylation reaction of a compound having a 2-propenyl group, can be conducted with high selectivity by a simple and easy method. The method for producing a silicon compound comprises reacting a compound (3) having a group represented by —CH.sub.2CH═CH.sub.2 and a silicon compound (4) having an H—Si bond in the presence of a transition metal catalyst (C) and a compound (D) having a group represented by —S(═O)— to obtain a compound (5) having a group represented by —CH.sub.2CH.sub.2CH.sub.2Si≡.

The invention provides a method for producing a peptide by (1) removing the N-terminal protective group of an amino acid or peptide compound of formula (I):

##STR00001##

wherein Y represents a residue of an N-protected amino acid or an N-protected peptide, and each of R.sup.1, R.sup.2, and R.sup.3 independently represents an aliphatic hydrocarbon group which may have a substituent or an aromatic hydrocarbon group which may have a substituent, wherein the total number of carbon atoms in the R.sup.1R.sup.2R.sup.3Si group is 18 to 80, and the R.sup.1R.sup.2R.sup.3SiCH.sub.2CH.sub.2 group is bonded to the C-terminus of the amino acid or peptide residue in Y; and (2) causing condensation of an N-protected amino acid or an N-protected peptide and the N-terminus of the C-protected amino acid or C-protected peptide obtained in the step (1).

The present invention relates to a new compound of formula (I) wherein the variables have the meaning as indicated in the claims; or an enantiomer or salt thereof. The compounds of formula (I) are useful in the control of parasites, in particular endoparasites, in and on vertebrates.

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