CAS: 4210-60-0; Tert-Butylmalononitrile

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2-Bromo-2-Methylpropylidenemalononitrile置于sodium Tetrahydroborate体系中,用 乙二醇二甲醚 作为反应溶剂,化学反应生成 叔丁基丙二腈
参考文献:Preparation Of 2,2-Dialkylcyclopropanes Geminally Substituted With Electron-Withdrawing Groups
标题:Preparation Of 2,2-Dialkylcyclopropanes Geminally Substituted With Electron-Withdrawing Groups
摘要:
DOI:10.1055/s-1978-24799

专利信息

专利号:US-10729623-B2
优先权日:2015-05-08
标 题:Method for producing elliptical, needle-shaped, or rod-shaped polymer particles
发明人：HAYAKAWA KAZUTOSHI; HASHIBA TOSHIFUMI; MATSUZAKA ERINA; YAMADA Goki
权利人:NISSHINBO HOLDINGS INC
摘要:A method for producing elliptical, needle-shaped, or rod-shaped polymer particles satisfying (1)-(3) below includes a step in which a synthesis solution including water, a mixed solvent of a hydrophilic organic solvent and a hydrophobic organic solvent, a polymeric stabilizer, a polymerization initiator, and an unsaturated monomer is heated, and, at least after the heating has started, the pH of the synthesis solution is adjusted to 5-9 inclusive to perform solution polymerization: (1) the average (L AV ) length (L) in a two-dimensional projection diagram obtained by irradiating the particles with light from a direction orthogonal to the longitudinal direction is 0.1-80 μm; (2) the average (D AV ) breadth (D) in the two-dimensional projection diagram obtained by irradiating the particles with light from the direction orthogonal to the longitudinal direction is 0.05-40 μm; and (3) the average (P AV ) aspect ratio (L/D) calculated from the length (L) and the breadth (D) is 1.5-30.