摘要:
Synthesis of compounds having varying degrees of conformational rigidity is obtained via a low cost, high yield and efficient synthetic reactions. The library of compounds is structurally diverse having at least one or more chiral centers and providing large numbers of compounds having building block diversity and substantial scaffold diversity. The compounds further provide a novel method for obtaining candidate therapeutic agents for prevention, treatment or diagnosis of diseases.
摘要:
Synthesis of compounds having varying degrees of conformational rigidity is obtained via a low cost, high yield and efficient synthetic reactions. The library of compounds is structurally diverse having at least one or more chiral centers and providing large numbers of compounds having building block diversity and substantial scaffold diversity. The compounds further provide a novel method for obtaining candidate therapeutic agents for prevention, treatment or diagnosis of diseases.
摘要:
A novel fluorine-containing acrylic acid derivative of the invention is represented by the formula:
wherein A is a residue derived from an organic compound having at least two active hydrogen atoms by removing at least two active hydrogen atoms, and p is an integer corresponding to the valency of the residue A, which is easily cured. Polymers comprising repeating units derived from the said acid derivative are also disclosed.
摘要:
The object of the present invention is to provide a method for efficiently and industrially deuterating a haloacrylic acid or salt thereof. The present invention is an invention of a deuteration method of a compound represented by the general formula [1]:
wherein, R 1 and R 2 indicate each independently a light hydrogen atom or a heavy hydrogen atom and at least one of R 1 and R 2 indicates a light hydrogen atom; R 3 indicates a light hydrogen atom, a heavy hydrogen atom, an alkaline metal atom or an alkaline earth metal atom; X indicates a halogen atom; and n indicates 1 or 2, which comprises reacting the compound represented by the general formula [1] with a heavy hydrogen source in the presence of a catalyst selected from a palladium catalyst, a platinum catalyst, a rhodium catalyst, a ruthenium catalyst, a nickel catalyst and a cobalt catalyst that are not subjected to activation processing; and an invention of a deuterated compound represented by the general formula [2]:
wherein, R 4 and R 5 indicate each independently a light hydrogen atom or a heavy hydrogen atom and at least one of R 4 and R 5 indicates a heavy hydrogen atom; R 3 indicates a light hydrogen atom, a heavy hydrogen atom, an alkaline metal atom or an alkaline earth metal atom; X indicates a halogen atom; and n indicates 1 or 2.
摘要:
An ±-pentafluoroethyl acrylic acid derivative represented by the general formula [I]: [wherein R represents a hydrogen atom, a non-substituted or substituted aromatic ring, or a straight or branched alkyl group having 1 to 20 carbon(s) which may have a cyclic moiety optionally substituted with at least one substituent (halogen atom, hydroxyl group, straight or branched alkoxy group having 1 to 10 carbon(s) which may have a cyclic moiety, non-substituted or substituted aromatic group)].
摘要:
The invention relates to a method of preparing α,β-difluoroacrylic acid and α,β-alkyl difluoroacrylates. The inventive method consists in: preparing 2,3-difluoro-2,3-dichloropropanol (I) by radical telomerisation of CFCl=CFCl with CH3OH; oxidising (I) in order to obtain 2,3-difluoro-2,3-dichloropropanoic acid (II); and treating (II) with Zn in order to dechlorinate and, optionally, esterify the acid function before or after the dechlorination step.
摘要:
This invention provides a method for deuterating a haloacrylic acid or its salt with high efficiency on a commercial scale. The method is characterized in that a compound represented by general formula [1] wherein R1 and R2 each independently represent a light hydrogen atom or a heavy hydrogen atom, and at least one of R1 and R2 represents a light hydrogen atom; R3 represents a light hydrogen atom, a heavy hydrogen atom, an alkali metal atom, or an alkaline earth metal atom; X represents a halogen atom; and n represents 1 or 2, is reacted with a heavy hydrogen source in the co-presence of a catalyst selected from palladium catalysts, platinum catalysts, rhodium catalysts, ruthenium catalysts, nickel catalysts, and cobalt catalysts not subjected to activation treatment. The deuterated compound is represented by general formula [2] wherein R4 and R5 each independently represent a light hydrogen atom or a heavy hydrogen atom, and at least one of R4 and R5 represents a heavy hydrogen atom; R3 represents a light hydrogen atom, a heavy hydrogen atom, an alkali metal atom, or an alkaline earth metal atom; X represents a halogen atom; and n represents 1 or 2.