oleic acid

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: oleic acid
• 英文别名: ethane;(Z)-octadec-9-enoic acid
• 化学式: C₂H₆*C₁₈H₃₄O₂
• 分子量: 312.536
• InChiKey: LXRRDENXKWITKC-KVVVOXFISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.13
• 重原子数：
  22
• 可旋转键数：
  15
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  四氯化钨 、 oleic acid 在 油胺 、 十八碳烯 作用下， 反应 11.0h， 生成 tungsten(IV) oxide
  参考文献：
  名称：

  Room-Temperature Chemoselective Reduction of 3-Nitrostyrene to 3-Vinylaniline by Ammonia Borane over Cu Nanoparticles

  摘要：

  We report a new strategy of controlling catalytic activity and selectivity of Cu nanoparticles (NPs) for the ammonia borane initiated hydrogenation reaction. Cu NPs are active and selective for chemoselective reduction of nitrostyrene to vinylaniline under ambient conditions. Their activity, selectivity, and more importantly, stability are greatly enhanced by their anchoring on WO2.72 nanorods, providing a room-temperature full conversion of nitrostyrene selectively to vinylaniline (>99% yield). Compared with all other catalysts developed thus far, our new Cu/WO2.72 catalyst shows much enhanced hydrogenation selectivity and stability without the use of pressured hydrogen. The synthetic approach demonstrated here can be extended to prepare various M/WO2.72 catalysts (M = Fe, Co, Ni), with M being stabilized for many chemical reactions.

  DOI：

  10.1021/jacs.8b11303
• 作为试剂：
  描述：

  copper acetylacetonate 、 palladium 在 油胺 、 硼烷-叔丁基胺 、 oleic acid 作用下， 以 正己烷 为溶剂， 生成 copper-palladium
  参考文献：
  名称：

  Room-Temperature Chemoselective Reduction of 3-Nitrostyrene to 3-Vinylaniline by Ammonia Borane over Cu Nanoparticles

  摘要：

  We report a new strategy of controlling catalytic activity and selectivity of Cu nanoparticles (NPs) for the ammonia borane initiated hydrogenation reaction. Cu NPs are active and selective for chemoselective reduction of nitrostyrene to vinylaniline under ambient conditions. Their activity, selectivity, and more importantly, stability are greatly enhanced by their anchoring on WO2.72 nanorods, providing a room-temperature full conversion of nitrostyrene selectively to vinylaniline (>99% yield). Compared with all other catalysts developed thus far, our new Cu/WO2.72 catalyst shows much enhanced hydrogenation selectivity and stability without the use of pressured hydrogen. The synthetic approach demonstrated here can be extended to prepare various M/WO2.72 catalysts (M = Fe, Co, Ni), with M being stabilized for many chemical reactions.

  DOI：

  10.1021/jacs.8b11303

文献信息

• [EN] SUBSTITUTED ORGANOPOLYSILOXANES CONTAINING PHOSPHONIC GROUPS, METHODS FOR THE PRODUCTION AND USE THEREOF<br/>[FR] ORGANOPOLYSILOXANES SUBSTITUEES CONTENANT DES GROUPES PHOSPHONIQUES, PROCEDES DE PRODUCTION ET UTILISATIONS
  申请人：PHOSPHONICS LTD

  公开号：WO2007006569A1

  公开（公告）日：2007-01-18

  [EN] The invention relates to new compounds of Formula (1) X_xY_yC_cD_d (Formula 1 ) wherein X is [O_3/2SiCH(CH₂PO(OR)(OR¹))CH₂CH₂SiO_3/2], Y is [O_3/2SiCH₂CH₂PO(OR)(OR¹)], C is [O_3/2SiV] and D is [O_3/2SiW], R and R¹ are each independently selected from hydrogen, an optionally complex metal ion Mⁿ⁺/n and an optionally substituted linear or branched group selected from C_1-40-alkyl, C_2-40-alkenyl, C_2-40-alkynyl group, an aryl and C_1-4o-alkylaryl group, V is selected from an optionally substituted linear or branched group selected from C_1-40-alkyl, C_2-4o-alkenyl, C_2-40-alkynyl group, an aryl and C_1-40-alkylaryl group, and W is (CH₂)_SZ where Z is selected from a sulfonic acid group, a Mⁿ⁺/n sulfonate group, sulfide, sulfoxide, sulfone, amine, polyalkyl amine, phosphine and other phosphorous containing groups and an optionally substituted linear or branched group selected from C_1-40-alkyl, C_2-40-alkenyl, C_2-40- alkynyl group, an aryl and C_1-40-alkylaryl group X and Y are always present with at least one of C or D or both present The integers x, y, c and d are such that the ratio of x y+c+d, varies from 0 001 to 100 and d+c x+y varies from 0 001 to 100 The free valences of the silicate oxygen atoms are saturated by one or more of silicon atoms of other groups of Formula (1) , hydrogen, a linear or branched C_1-12-alkyl group or by end groups, cross-linking bridge members or by polymer chains comprising known optionally substituted metal oxides The compounds are useful as catalysts for a wide variety of reactions, as cation and anion exchangers, as scavengers for unwanted organic and inorganic compounds in reaction mixtures, as solid phase purification material and enzyme, peptides, proteins or nucleic acids immobilisation supports.
  [FR] L'invention concerne de nouveaux composés de la formule (1) X_xY_yC_cD_d (formule 1 ), dans laquelle X est [O_3/2SiCH(CH₂PO(OR)(OR¹))CH₂CH₂SiO_3/2], Y est [O_3/2SiCH₂CH₂PO(OR)(OR¹)], C est [O_3/2SiV] et D est [O_3/2SiW]; R et R¹ sont chacun indépendamment choisis entre l'hydrogène, un ion métal facultativement complexe Mⁿ⁺/n et un groupe linéaire ou ramifié facultativement substitué choisi entre un groupe alkyle C_1-40, alcényle C_2-40, alkynyle C_2-40, un groupe aryle et alkylaryle C_1-40; V est un groupe ramifié ou linéaire facultativement substitué choisi entre un groupe alkyle C_1-40, alcényle C_2-40, alkynyle C_2-40, un groupe aryle et alkylaryle C_1-40; et W est (CH₂)_SZ où Z est choisi entre un groupe acide sulfonique, un groupe sulfonate Mⁿ⁺/n, un groupe soufre, sulfoxyde, sulfone, amine, polyalkyl amine, phosphine et d'autres groupes contenant du phosphore et un groupe linéaire ou ramifié facultativement substitué choisi entre alkyle C_1-40, alcényle C_2-40, alkynyle C_2-40, un groupe aryle et alkylaryle C_1-40. X et Y sont toujours présents, et C et/ou D sont présents. Les entiers x, y, c et d sont tels que le rapport x:y+c+d varie de 0,001 à 100 et le rapport d+c:x+y varie de 0,01 à 100. Les valences libres des atomes d'oxygène du silicate sont saturées par un ou plusieurs atomes de silicium d'autres groupes de la formule (1), par l'hydrogène, par un groupe alkyle C_1-12 linéaire ou ramifié ou par des groupes terminaux, par des éléments ponts de réticulation ou par des chaînes polymères comprenant des oxydes métalliques facultativement substitués connus. Les composés de l'invention sont utilisés comme catalysteurs dans une large variété de réactions, par exemple dans les échangeurs de cations et d'anions, comme capteurs de composés organiques et inorganiques indésirables dans des mélanges réactionnels, comme matériaux de purification en phase solide, et comme supports d'immobilisation d'enzymes, de peptides, de protéines ou d'acides nucléiques.
• Room-Temperature Chemoselective Reduction of 3-Nitrostyrene to 3-Vinylaniline by Ammonia Borane over Cu Nanoparticles
  作者：Mengqi Shen、Hu Liu、Chao Yu、Zhouyang Yin、Michelle Muzzio、Junrui Li、Zheng Xi、Yongsheng Yu、Shouheng Sun

  DOI：10.1021/jacs.8b11303

  日期：2018.12.5

  We report a new strategy of controlling catalytic activity and selectivity of Cu nanoparticles (NPs) for the ammonia borane initiated hydrogenation reaction. Cu NPs are active and selective for chemoselective reduction of nitrostyrene to vinylaniline under ambient conditions. Their activity, selectivity, and more importantly, stability are greatly enhanced by their anchoring on WO2.72 nanorods, providing a room-temperature full conversion of nitrostyrene selectively to vinylaniline (>99% yield). Compared with all other catalysts developed thus far, our new Cu/WO2.72 catalyst shows much enhanced hydrogenation selectivity and stability without the use of pressured hydrogen. The synthetic approach demonstrated here can be extended to prepare various M/WO2.72 catalysts (M = Fe, Co, Ni), with M being stabilized for many chemical reactions.