- Studies on synthesis, characterization, micellar features, and solubilization of four novel cationic gemini surfactants
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Four novel cationic gemini surfactants with the same hydrocarbon chain lengths but different spacers have been investigated in this article. After these cationic gemini surfactants have been synthesized, their structures have been characterized by appropr
- Bilgen, Sel?uk,Sarikaya, Ikbal,ünver, Yasemin,Akba?, Halide
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- Synthesizing method of imidazole type Gemini surfactant
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The invention discloses a synthesizing method of imidazole type Gemini surfactant. The synthesizing method is characterized in that N-alkyl imidazole is synthesized by using imidazole and alkyl bromide, reaction temperature is 25 DEG C, reaction time is 8 hours, and the yield is about 70%; bromoacetic acid 1, 4-butanediyl ester is synthesized by using bromoacetic acid and dihydric alcohol, reaction temperature is 125 DEG C, and reaction time is 24 hours; the final product is synthesized by using the N-alkyl imidazole and the bromoacetic acid 1, 4-butanediyl ester, reaction temperature is 85 DEG C, reaction time is 36 hours, and yield is about 85%. The synthesizing path is shown as follows, wherein n=2, 4, 6.
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Paragraph 0010
(2016/10/09)
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- Salt, resist composition and a manufacturing method of a resist pattern
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PROBLEM TO BE SOLVED: To provide a resist composition from which a resist pattern with excellent pattern collapse resistance can be produced.SOLUTION: A resist pattern with excellent pattern collapse resistance can be produced by using a resist composition containing a salt expressed by formula (I) as an acid generator.
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Paragraph 0307-0309
(2016/12/16)
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- Preparation of a novel silica gel-adsorbed Br?nsted acid catalyst for the solvent-free esterification of bromoacetic acid with benzyl alcohol
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A new bifunctional Br?nsted acid catalyst that contains two sulfo groups was prepared. The adsorption of this new bifunctional Br?nsted acid catalyst on silica gel made it possible to be reused 10 times without a loss of catalytic activity in the solvent-free esterification of bromoacetic acid with an equiv. of benzyl alcohol without the formation of dibenzyl ether.
- Funabiki, Kazumasa,Komeda, Takuya,Sakaida, Yuta,Kubota, Yasuhiro,Matsui, Masaki
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p. 116 - 120
(2013/02/23)
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- Bromoacetyl bromide: A versatile and selective cleaving agent for ethers and acetals
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It is shown that bromoacetyl bromide can be utilized for the selective cleavage of ethers and acetals in high yields. With cyclic ethers and acetals as starting materials, cleavage products are produced with two strategically positioned bromo substituents which may be exploited for selective extention of the carbon chain.
- Schneider, David F.,Viljoen, Murray S.
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p. 721 - 728
(2007/10/03)
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- Synthesis of cyclic functionalized bisulfides and their oligomers
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In order to obtain comonomers for the free-radical polymerization of acrylic or vinylic monomers, cyclic disufides were synthesized. Ester or amide functions were introduced in these cyclic molecules in order to afford easily degradable centers in the cop
- Bonnans-Plaisance,Levesque,Toulin
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p. 231 - 244
(2007/10/03)
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- Microbicidal/microbistatic compositions for industrial use employing 4,5-dichloro-1,2-dithiol-3-one and haloacetic acid esters as the active agents
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This invention relates to microbicidal/microbistatic compositions for industrial use which comprise 4,5-dichloro-1,2-dithiol-3-one and a haloacetic acid ester and an industrial method of killing and/or inhibiting microbes by using the aforementioned compositions.
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