摘要:
PROBLEM TO BE SOLVED: To provide an improved method for the [2+2+2] cyclotrimerization reaction in an aqueous solution using a water-soluble transition metal catalyst. SOLUTION: The synthesizable compound is a substituted aromatic compound expressed by general formula (R 1 is H or -CH 2 OH; and R 2 is -CH 2 OH, -COCH 3 , -CO 2 CH 3 , (CH 2 ) 2 OH, -CH 2 NH(CH 3 ), -C(CH 3 ) 2 OH or -CH 2 N(CH 3 ) 2 ). COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a new fluorine-containing cyclic compound and a fluorine-containing polymer compound and to provide a resist material having high transparency in broad wavelength area from an ultraviolet light area to a near-infrared light area and having high adhesiveness and film-forming property to substrates and high etching resistance together and to provide a pattern-forming method using the resist material and to provide a package material for semiconductor devices. SOLUTION: The fluorine-containing cyclic compound is represented by general formula (1) [wherein R1a is a 1-25C cyclic alkyl group, a cyclic alkenyl group or a cyclic alkynyl group; R2 and R3 are each a hydrogen atom, a halogen atom, a 1-25C straight-chain or branched or cyclic alkyl group and R1a, R2 and R3 may be each an atomic group containing a fluorine atom, an oxygen atom, a sulfur atom, a nitrogen atom or a carbon-carbon double bond]. COPYRIGHT: (C)2005,JPO&NCIPI
摘要:
The present invention relates to the preparation of alpha-hydroxy ketones of the general formula I. In particular, the invention relates to novel imidazolinium carboxylate adducts and to a novel process for using catalytic amounts of imidazolium and imidazolinium carboxylate adducts in the acyloin reaction of aldehydes to prepare hydroxy ketones of the general formula I, where R and R' are the same or different and are each H or a straight-chain or branched and optionally substituted C1-C12-alkyl radical, and R''-H3CSCH2CH2, t-butyl, n-butyl, sec-butyl, n-propyl, i-propyl, an optionally heteroatom-substituted C6-C18-aryl, heteroaryl, C6-C18-arylalkyl, especially phenylmethyl, where phenyl may again be heteroatom-substituted, or heteroalkyl.
摘要:
The present invention relates to the preparation of alpha-hydroxy ketones of the general formula I. In particular, the invention relates to novel imidazolinium carboxylate adducts and to a novel process for using catalytic amounts of imidazolium and imidazolinium carboxylate adducts in the acyloin reaction of aldehydes to prepare hydroxy ketones of the general formula I, where R and R' are the same or different and are each H or a straight-chain or branched and optionally substituted C1-C12-alkyl radical, and R''-H3CSCH2CH2, t-butyl, n-butyl, sec-butyl, n-propyl, i-propyl, an optionally heteroatom-substituted C6-C18-aryl, heteroaryl, C6-C18-arylalkyl, especially phenylmethyl, where phenyl may again be heteroatom-substituted, or heteroalkyl.