methylenation of acyl fluorides and acyl chlorides with substituted with aryl, alkenyl, and alkyl groups trimethylaluminum afforded an array of 2-substituted propene derivatives. The addition of a catalytic amount of DPPM increased an efficiency of the reactions. Trimethylaluminum as the methylenation reagent not only eliminates the presynthesis of methylene transfer reagent, but provides an efficient method for
A resin composition is provided and contains a compound (A) having at least one group represented by the following Formula (1) in a molecule, a crosslinking type curing agent (B), and an azo compound (C) that has an azo group in a molecule and has no heteroatom other than a nitrogen atom constituting the azo group.
In Formula (1), n represents 0 to 10, Z represents an arylene group, and R1 to R3 each independently represent a hydrogen atom or an alkyl group.
Soluble polyfunctional vinyl aromatic polymer and method of producing the same
申请人:Kawabe Masanao
公开号:US20070155923A1
公开(公告)日:2007-07-05
The present invention relates to a soluble polyfunctional vinylaromatic copolymer improved in heat resistance, resistance to thermal decomposition, solvent solubility, and processability. The soluble polyfunctional vinylaromatic polymer is obtained by cationically polymerizing, at a temperature of 20 to 120° C., one or more monomer ingredients including 20 to 100 mol % divinylaromatic compound (a) in the presence of a donor ingredient, e.g., a quaternary ammonium salt, with the aid of a Lewis acid catalyst and an initiator represented by the following general formula (1)
wherein R
1
represents hydrogen or a monovalent C
1-6
hydrocarbon group; R
2
represents an aromatic or aliphatic hydrocarbon group having a valence of p; Z represents halogen or C
1-6
alkoxy or acyloxy; and p is an integer of 1 to 6; provided that when two or more R
1
's and Z's are present per molecule, they may be identical to different from each other.
SILICON-CONTAINING CONDENSATE, COMPOSITION FOR FORMING A SILICON-CONTAINING RESIST UNDER LAYER FILM, AND PATTERNING PROCESS
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20170154766A1
公开(公告)日:2017-06-01
The present invention provides a silicon-containing condensate comprising one or more repeating units selected from a repeating unit shown by the following general formula (A1), a repeating unit shown by the following general formula (A2), and a repeating unit shown by the following general formula (A3),
wherein R
1
represents a group shown by the following general formula (A-1) or (A-2); R
2
and R
3
each independently represent the same group as R
1
, a hydrogen atom, or a monovalent organic group having 1 to 30 carbon atoms other than R
1
.
There can be provided a silicon-containing condensate to give a composition for forming a silicon-containing resist under layer film which can form a resist under layer film with good adhesiveness to any resist pattern, whether the pattern is formed by negative development or positive development.