Disclosed in certain embodiments is an electron donor for a polyolefin polymerization catalyst. In some embodiments, a solid catalyst component includes a metal component and the electron donor that form a catalyst on a support.

Disclosed in certain embodiments is an electron donor for a polyolefin polymerization catalyst. In some embodiments, a solid catalyst component includes a metal component and the electron donor that form a catalyst on a support.

An object of the present invention is to provide a method for producing an ether compound easily in a small number of steps at lower costs in high yields. The present invention relates to a method in which the ether compound represented by the general formula (1) is produced by reacting the specific carbonyl compound specified in the general formula (2) and the specific dialkoxy compound specified in the general formula (3) with hydrogen in the presence of a hydrogenation catalyst and an acidic substance to perform hydrogenation. ##STR00001##

An object of the present invention is to provide a method for producing an ether compound easily in a small number of steps at lower costs in high yields. The present invention relates to a method in which the ether compound represented by the general formula (1) is produced by reacting the specific carbonyl compound specified in the general formula (2) and the specific dialkoxy compound specified in the general formula (3) with hydrogen in the presence of a hydrogenation catalyst and an acidic substance to perform hydrogenation. ##STR00001##

The present application provides a method for preparing a deuterated chemical by means of a deuteration reaction of a carbon-hydrogen bond with a deuterium gas under the catalysis of an alkali, wherein in the presence of a catalyst, a deuterium gas is added into a compound containing a carbon-hydrogen bond for a deuteration reaction so as to generate a deuterated compound. A deuterium gas is used as a deuterium source, such that multiple water separation operations, tedious steps and the wasting of energy caused by usage of a large amount of deuterium oxide as a deuterium source are avoided. Moreover, a cheap and easily available alkali metal compound is used for replacing an expensive transition metal catalyst and a complex-structure ligand as a catalyst for a deuteration reaction, and the alkali metal compound has the advantages of a low cost, a good compatibility with functional groups of a substrate and a high deuteration rate. The present application provides a new, low-cost, green and efficient deuteration method, which has a high application value.

The present application provides a method for preparing a deuterated chemical by means of a deuteration reaction of a carbon-hydrogen bond with a deuterium gas under the catalysis of an alkali, wherein in the presence of a catalyst, a deuterium gas is added into a compound containing a carbon-hydrogen bond for a deuteration reaction so as to generate a deuterated compound. A deuterium gas is used as a deuterium source, such that multiple water separation operations, tedious steps and the wasting of energy caused by usage of a large amount of deuterium oxide as a deuterium source are avoided. Moreover, a cheap and easily available alkali metal compound is used for replacing an expensive transition metal catalyst and a complex-structure ligand as a catalyst for a deuteration reaction, and the alkali metal compound has the advantages of a low cost, a good compatibility with functional groups of a substrate and a high deuteration rate. The present application provides a new, low-cost, green and efficient deuteration method, which has a high application value.

The present invention is directed to novel aldehyde compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel aldehyde compounds.

The present invention is directed to novel aldehyde compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel aldehyde compounds.

The present invention is directed to novel aldehyde compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel aldehyde compounds.

The present invention is directed to novel aldehyde compounds and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the novel aldehyde compounds.