PREPARATION OF 2,2-BIS (FLUOROALKYL) OXIRANE AND PREPARATION OF PHOTOACID GENERATOR THEREFROM
申请人:SAGEHASHI Masayoshi
公开号:US20130005997A1
公开(公告)日:2013-01-03
A 2,2-bis(fluoroalkyl)oxirane (A) is prepared by reacting a fluorinated alcohol (1) with a chlorinating, brominating or sulfonylating agent under basic conditions to form an oxirane precursor (2) and subjecting the oxirane precursor to ring closure under basic conditions. R
1
and R
2
are fluoroalkyl groups, R
3
and R
4
are hydrogen or monovalent hydrocarbon groups, X is chlorine, bromine or —OSO
2
R
5
group, and R
5
is alkyl or aryl.
Reactions of 2,2-bis(trifluoromethyl)oxirane with alcohols under phase transfer catalysis
作者:Viacheslav A. Petrov
DOI:10.1016/j.jfluchem.2003.11.026
日期:2004.4
It was demonstrated that the reaction of 2,2-bis(trifluoromethyl)oxirane (1) with variety of alcohols could be successfully carried out under phase transfer catalysis conditions using sodium or potassium hydroxide as a base. For example, reaction of CH3OH, C2H5OCH2CH2OH, HOCH2CH2OH with one or two moles of 1 in the presence of the catalyst [(C4H9)4N+HSO4−] gives the corresponding tertiary alcohols
Fluorine-containing silicon compounds, silicone resins, resist compositions, and patterning process
申请人:Kinsho Takeshi
公开号:US20070218402A1
公开(公告)日:2007-09-20
Fluorine-containing silicon compounds having the general formula (1):
wherein X
1
, X
2
, and X
3
each are hydrogen, hydroxyl, halogen, a straight, branched or cyclic alkoxy group of 1 to 6 carbon atoms, or a monovalent organic group of 1 to 20 carbon atoms having a straight, branched, cyclic or polycyclic skeleton, Y is a divalent organic group, R
1
and R
2
are each independently hydrogen or a monovalent organic group of 1 to 20 carbon atoms having a straight, branched, cyclic or polycyclic skeleton, or R
1
and R
2
may bond together to form a ring with the carbon atom to which they are attached silicone resins obtained from the compounds of formula (1) has an appropriate acidity to enable formation of a finer pattern while minimizing the pattern collapse by swelling when used in a resist composition.
SOLVENT FOR NONAQUEOUS ELECTROLYTE SOLUTION OF LITHIUM SECONDARY BATTERY
申请人:Koh Meiten
公开号:US20120183867A1
公开(公告)日:2012-07-19
The present invention provides a solvent for a nonaqueous electrolyte solution enabling a lithium secondary battery to exhibit an excellent discharge capacity, load characteristics, and cycle characteristics even under high voltages, as well as a nonaqueous electrolyte solution that uses this solvent and a lithium secondary battery. This solvent for a nonaqueous electrolyte solution is a solvent for a nonaqueous electrolyte solution for a lithium secondary battery, wherein the solvent for a nonaqueous electrolyte solution contains a fluorine-free cyclic carbonate (I), a fluorine-free chain carbonate (II), and a 1,1-di(fluorinated alkyl)ethylene carbonate (III), and wherein with a sum of (I), (II), and (III) being 100 volume %, the fluorine-free cyclic carbonate (I) is 10 to 50 volume %, the fluorine-free chain carbonate (II) is 49.9 to 89.9 volume %, and the 1,1-di(fluorinated alkyl)ethylene carbonate (III) is from at least 0.1 volume % to not more than 30 volume %.
Preparation of 2,2-bis (fluoroalkyl) oxirane and preparation of photoacid generator therefrom
申请人:Sagehashi Masayoshi
公开号:US08686166B2
公开(公告)日:2014-04-01
A 2,2-bis(fluoroalkyl)oxirane (A) is prepared by reacting a fluorinated alcohol (1) with a chlorinating, brominating or sulfonylating agent under basic conditions to form an oxirane precursor (2) and subjecting the oxirane precursor to ring closure under basic conditions. R1 and R2 are fluoroalkyl groups, R3 and R4 are hydrogen or monovalent hydrocarbon groups, X is chlorine, bromine or —OSO2R5 group, and R5 is alkyl or aryl.
A 2,2-双(氟烷基)环氧烷(A)是通过将氟化醇(1)与氯化、溴化或磺酰化剂在碱性条件下反应形成环氧前体(2),并在碱性条件下使环氧前体发生环合反应而制备的。其中,R1和R2为氟烷基,R3和R4为氢或一价碳氢基团,X为氯、溴或—OSO2R5基团,R5为烷基或芳基。