The present invention discloses a method for directly constructing highly optically active tetrasubstituted allenic acid compounds, i.e., a one-step process for directly constructing highly optically active axially chiral tetrasubstituted allenic acid compounds by using tertiary propargyl alcohol, carbon monoxide and water as reactants in an organic solvent in the presence of palladium catalyst, chiral diphosphine ligand, monophosphine ligand and organic phosphoric acid. The method of the present invention has the following advantages: operations are simple, raw materials and reagents are readily available, the reaction conditions are mild, the substrate has high universality, the functional group has good compatibility, and the reaction has high enantioselectivity (90%˜>99% ee). The highly optically active allenic acid compounds obtained by the present invention can be used as an important intermediate to construct γ-butyrolactone compounds containing tetrasubstituted chiral quaternary carbon centers, tetrasubstituted allenic alcohol and other compounds.

Provided are compounds and methods for treating neurodegenerative diseases and conditions, such as multiple sclerosis, using an estrogen receptor-β ligand (ERβ ligand).

Provided are compounds and methods for treating neurodegenerative diseases and conditions, such as multiple sclerosis, using an estrogen receptor-β ligand (ERβ ligand).

Provided is a novel donor-acceptor type compound which emits light even in a solid state. The present invention provides an organic optical material comprising a complex formed from (1) a conjugated molecule having (a) at least one electron donating site, (b) at least one electron accepting site, and (c) at least one conjugated site in the same molecule and (2) a compound having a proton donating property or an electron pair accepting property, the complex having a non-covalent interaction at the electron accepting site, wherein the complex is solid at ordinary temperature; and the organic optical material has a property of emitting light having a maximum fluorescence wavelength which causes a Stokes shift having a value corresponding to 5% or more of the value of a maximum absorption wavelength from the maximum absorption wavelength toward the long wavelength side.

Provided are compounds and methods for treating neurodegenerative diseases and conditions, such as multiple sclerosis, using an estrogen receptor- ligand (ER ligand).

The present invention relates to a group of resorcinol derivatives as a pharmaceutically active compounds and methods of preparation thereof. Resorcinol derivatives have been used to treat various diseases and disorders. While such treatments hold promise, there remains a need in the art for more effective treatments and this has been brought about by way of the resorcinol derivative of the invention.

The present invention relates to a group of resorcinol derivatives as a pharmaceutically active compounds and methods of preparation thereof. Resorcinol derivatives have been used to treat various diseases and disorders. While such treatments hold promise, there remains a need in the art for more effective treatments and this has been brought about by way of the resorcinol derivative of the invention.

Primarily, the present invention relates to the use of substances of the formula (I) as herbicides, in particular for controlling broad-leaved weeds and/or weed grasses in crops of useful plants and/or as plant growth regulators for influencing the growth of crops of useful plants. The invention furthermore relates to the novel herbicidal substances of the formulae (Ib) and (Ia). The present invention also relates to corresponding compositions comprising one or more of the herbicides of the formula (I) and further agrochemically active substances, and also to plant growth-regulating or herbicidal compositions comprising one or more of these compounds. Moreover, the present invention relates to processes for preparing the compounds of the formula (I).

Primarily, the present invention relates to the use of substances of the formula (I) as herbicides, in particular for controlling broad-leaved weeds and/or weed grasses in crops of useful plants and/or as plant growth regulators for influencing the growth of crops of useful plants. The invention furthermore relates to the novel herbicidal substances of the formulae (Ib) and (Ia). The present invention also relates to corresponding compositions comprising one or more of the herbicides of the formula (I) and further agrochemically active substances, and also to plant growth-regulating or herbicidal compositions comprising one or more of these compounds. Moreover, the present invention relates to processes for preparing the compounds of the formula (I).

The present invention relates to a new process for the production of substituted 2-[2-(phenyl) ethylaminojalkaneamide derivatives of the following formula (I), in particular 2-[2-(3-butoxyphenyl)-ethylamino]-N,N-dimethylacetamide in high yields with very high chemical purity. The invention relates to a process for preparing a compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR00001##