IONIC LIQUID, LUBRICANT, AND MAGNETIC RECORDING MEDIUM
申请人:DEXERIALS CORPORATION
公开号:US20170298285A1
公开(公告)日:2017-10-19
A lubricant, which includes an ionic liquid including a conjugate base and a conjugate acid, wherein the conjugate acid is represented by General Formula (A) below, and wherein a pKa of an acid that is a source of the conjugate base in acetonitrile is 10 or less,
where, in General Formula (A), R
1
, R
2
, and R
3
are each independently a group including a hydrocarbon group, with the proviso that at least one of the hydrocarbon groups in R
1
, R
2
, and R
3
is a straight-chain hydrocarbon group having 6 or greater carbon atoms.
Weakly Nucleophilic Conjugate Bases of Superacids as Powerful Nucleophiles in Vinylic Bimolecular Nucleophilic Substitutions of Simple β-Alkylvinyl(aryl)-λ<sup>3</sup>-bromanes
作者:Masahito Ochiai、Takuji Okubo、Kazunori Miyamoto
DOI:10.1021/ja200479p
日期:2011.3.16
stereoselective synthesis of simple (E)-β-alkylvinyl(aryl)-λ(3)-bromanes via a boron-λ(3)-bromane exchange reaction and their unique bimolecularnucleophilicsubstitutions at the vinylic ipso carbon atom under mild conditions. Interestingly, even weakly nucleophilic anions such as conjugate bases of superacids (HBF(4), TfOH, Tf(2)CH(2), Tf(3)CH, Tf(2)NH, etc.) function as nucleophiles toward the vinyl-λ(3)-bromanes
하기 일반식(I)으로 표시되는 술포늄염 화합물. (상기 일반식(I) 중에서, R 및 R는, 각각 서로 동일하거나 상이한, 탄소 원자수 1〜18의 알킬기를 나타내고, R 및 R는, 각각 서로 동일하거나 상이한, 탄소 원자수 1〜10의 알킬기를 나타내고, X는, 술폰이미드 음이온 또는 퍼플루오로알칸술폰산 음이온을 나타내며, 여기서, RO 및 RO로 나타내는 치환기의 위치는, 각각 나프틸기의 2번〜8번 위치의 임의의 위치이다).