A resist composition which can easily form a resist pattern excellent in transparency for vacuum ultraviolet rays such as an F
2
excimer laser or the like and dry etching characteristics and further excellent in sensitivity, resolution, flatness, thermal resistance and the like, is provided. The resist composition, characterized by comprising (A) a fluorine-containing polymer having an acidic group blocked with a blocking group containing a cycloalkyl group, an organic group having one or more of cycloalkyl groups, a bicycloalkyl group or the like, (B) an acid generating compound capable of generating an acid by irradiation with a light, and (C) an organic solvent.
In this paper, we report on the development of a bench-stable borane for frustrated Lewis pair catalyzed reduction of aldehydes, ketones, and enones. The deliberate fine-tuning of structural and electronic parameters of Lewis acid component and the choice of Lewis base provided for the first time, a moisture-tolerant FLP catalyst. Related NMR and DFT studies underpinned the unique behavior of this FLP catalyst and gave insight into the catalytic activity of the resulting FLP catalyst.
SASSAMAN, MARK B.;KOTIAN, KIRTIVAN D.;PRAKASH, G. K. SURYA;OLAH, GEORGE A+, J. ORG. CHEM., 52,(1987) N 19, 4314-4319
作者:SASSAMAN, MARK B.、KOTIAN, KIRTIVAN D.、PRAKASH, G. K. SURYA、OLAH, GEORGE A+
DOI:——
日期:——
InBr3-catalyzed reduction of ketones with a hydrosilane: deoxygenation of aromatic ketones and selective synthesis of secondary alcohols and symmetrical ethers from aliphatic ketones
An InBr3–Et3SiH reducing system was developed to selectively convert aliphatic ketones to a variety of secondary alcohols in moderate to good yields. An initial mixing of InBr3 and PhSiH3 was followed by the addition of aliphatic ketones and a solvent to afford the symmetrical ether derivatives.