Three easy eco-friendly laboratory procedures are presented for the oxidative iodination of various activated and deactivated arenes with molecular iodine, in the presence of UHP (percarbamide), a stable, strongly H-bonded, solid urea-hydrogen peroxide adduct as the oxidant.
Radhakrishnamurti, P. S.; Panda, B. K., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1983, vol. 22, # 9, p. 770 - 773
作者:Radhakrishnamurti, P. S.、Panda, B. K.
DOI:——
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Willgerodt; Gartner, Chemische Berichte, 1908, vol. 41, p. 2819
作者:Willgerodt、Gartner
DOI:——
日期:——
PROTIVA, JIRI;KRECEK, VACLAV;MACA, BOHUMIL;URBAN, JIRI;BUDESINSKY, MILOS;+, COLLECT. CZECHOSL. CHEM. COMMUN., 54,(1989) N, C. 1012-1018
A chemically-amplified negative resist composition includes: (A) a quencher containing an onium salt shown by the following formula (A-1); (B) a base polymer containing repeating units shown by the following formulae (B1) and (B2); and (C) a photo-acid generator which generates an acid. Thus, the present invention provides: a negative resist composition which can form a favorable profile with high sensitivity and low LWR and CDU in a pattern; and a resist patterning process using the composition.