Diisopropylbenzene occurs in three isomeric forms, namely as the ortho, the meta, and the para derivatives ... . Orally, they are of very low toxicity. Of 10 rats dosed with 5.0 ml/kg, no deaths for the meta, and one death for the ortho and the para isomers occurred. ... Rats and rabbits exposed to 0.2 to 1.0 mg/l (30 to 150 ppm) for 90 minutes daily for 5 weeks developed vascular hyperemia, hemorrhaging in most major organs, and fatty and protein dystrophy in the liver, kidney, and heart, and hyperplasia of the bone marrow.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
非人类毒性摘录
二异丙基苯在兔眼实验中被评为1级,在1到10级的严重性量表中,10级为最严重。
Diisopropylbenzene rated 1 on rabbit eyes /on a scale of 1 to 10 with 10 being the most severe/. /Diisopropylbenzene/
异丙醇 、 苯 在
Water isopropylalcohol 、 三聚丙烯 、 苯 、 异丙醇 、 异丙苯 、 Cumen hydroperoxide 、 二异丙苯 、 alkylated benzenes 作用下,
200.0~230.0 ℃
、533.29 MPa
条件下,
以a pressure of 40 bar abs in the presence of zeolites as catalyst to form cumene from benzene and multiply alkylated benzenes的产率得到异丙苯
参考文献:
名称:
Process for preparing cumene which is used in the preparation of phenol
there is still no successful case that the hierarchical lamellar zeolite is hydrothermally synthesized by the self-assembly of the commercially available simple surfactant cetyltrimethylammonium bromide (CTAB) and inorganic zeolite precursor. In traditional syntheses, the self-assembly of simple surfactants and the growth of microporous framework are hardly compatible from both thermodynamic and kinetic
由层状沸石前体构造分级沸石催化剂是具有挑战性的,并且对于工业催化是有前途的。尽管已经进行了许多努力来通过后合成方法或在水热合成中使用复杂的表面活性剂来控制沸石纳米片的组织,但是仍然没有成功的案例通过商业上简单的表面活性剂鲸蜡基三甲基铵的自组装来水热合成分层的层状沸石。溴化物(CTAB)和无机沸石前体。在传统合成中,简单的表面活性剂的自组装和微孔骨架的生长从热力学和动力学的观点来看都是不相容的,而是倾向于引起相分离。在此处,我们首次采用沸石种子和CTAB辅助溶解的方法对介孔结构多层沸石ECNU-7P进行水热合成,其中包括交替堆叠无机MWW沸石纳米片和具有较大层间距(25Å)的有机CTAB层–重结晶路线。关联2D1 H – 29 Si固态NMR,X射线,电子显微镜和旋转电子衍射分析可提供分子水平的洞察力,以了解有机表面活性剂与无机骨架在自组装和结构演化过程中的客体-主体相互作用。此外,煅烧的具
Retinobenzoic acids. 1. Structure-activity relationships of aromatic amides with retinoidal activity
a medium-sized alkyl group (isopropyl, tert-butyl, etc.) at the meta position and a carboxyl group at the para position of the other benzene ring. The bonding of the amide structure can be reversed, this moiety apparently having the role of locating the two benzene rings at suitable positions with respect to each other. Substitution at the ring position ortho to the amide group or N-methylation of the
Bulky P,PO ligands were designed to inhibit isomerization and reduction side reactions during the crosscoupling between sterically hindered aryl halides and alkylboronic acids. Suzuki–Miyaura cross‐couplings between di‐ortho‐substituted aryl bromides and acyclic secondary alkylboronic acids have been achieved with high yields. The method has also enabled the preparation of ortho‐alkoxy di‐ortho‐substituted
Isopropylation of Benzene with 2-Propanol over High-Silica Large-Pore Zeolite: NCL-1
作者:M. Sasidharan、K.R. Reddy、R. Kumar
DOI:10.1006/jcat.1995.1163
日期:1995.7
temperature, WHSV, time on stream, and feed ratio of benzene to 2-propanol, as well as of the Si/Al molar ratio of zeolite NCL-1, on catalytic activity and selectivity was studied in the isopropylation of benzene with 2-propanol. The selectivity towards cumene increases with Al content, contact time, and ratio of benzene to 2-propanol. Among diisopropylbenzenes (DIPBS), the concentration of 1,3-DIPB
A mesoporous aluminosilicate prepared by simply coating fibrous γ-AlOOH on the external surface of SBA-15 for catalytic hydrocarbon cracking
作者:Zongbo Shi、Yejun Guan、Peng Wu、Mingyuan He
DOI:10.1039/c6ra07467g
日期:——
desorption of ammonia and ethanol (NH3-TPD and EtOH-TPD). Coating fibrous γ-alumina stabilized the SBA-15 structure against collapse under critical steaming conditions (800 °C and 4 h) allowing for the facile synthesis of mesoporous aluminosilicate. The migration of aluminum and silicon between the alumina and SBA-15 zones led to the formation of Al–OH–Si with weak acidity which served as the active sites
通过简单地将SBA-15与纤维状勃姆石溶胶混合,然后进行老化和煅烧,可以合成在SBA-15的外表面具有纤维状γ-氧化铝涂层的二元SiO 2 / Al 2 O 3复合材料。所得材料的质构和酸性性质通过各种技术进行表征,即粉末X射线衍射(XRD),扫描电子显微镜(SEM),红外(IR)光谱,N 2吸附/解吸,核磁共振(NMR)光谱和程序升温脱附的氨和乙醇(NH 3-TPD和EtOH-TPD)。涂覆的纤维状γ-氧化铝可稳定SBA-15结构,使其在关键的蒸汽条件(800°C和4 h)下不会崩塌,从而可以轻松合成介孔铝硅酸盐。铝和硅在氧化铝和SBA-15区之间的迁移导致形成弱酸度的Al-OH-Si,这是在1,3,5-三异丙基苯裂解中具有出色催化性能的活性位点( TIPB)。