1,1-dichloropentane | 30586-10-8

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机氯化物
• 英文名称: 1,1-dichloropentane
• 英文别名: 1,1-Dichlor-pentan；1,1-dichloro-n-pentane；Dichloropentane
• CAS: 30586-10-8
• 化学式: C₅H₁₀Cl₂
• 分子量: 141.04
• InChiKey: PGEVTVXEERFABN-UHFFFAOYSA-N

物化性质

• 熔点：
  -75.05°C (estimate)
• 沸点：
  149.59°C (estimate)
• 密度：
  1.1091 (estimate)
• 物理描述：
  Dichloropentane is a clear colorless to yellow liquid. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air. Used as a solvent for oil, greases, rubber resins, for degreasing metals and as an insecticide and soil fumigant.
• 闪点：
  106 °F (NFPA, 2010)
• 保留指数：
  889;889

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  7
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 危险等级：
  3.2

制备方法与用途

类别：易燃液体
毒性分级：高毒
急性毒性：参考值 - 腹腔-小鼠 LDL0: 64 毫克/公斤

可燃性危险特性：易燃；燃烧时会产生有毒的氯化物气体；遇水会产生有毒的氯化氢气体

储运特性：库房应通风、低温且干燥

灭火剂：干粉、泡沫、砂土或水

反应信息

• 作为反应物：
  描述：

  1,1-dichloropentane 在 三乙基硅烷 、 十羰基二铼 作用下， 反应 5.0h， 以23%的产率得到1-氯戊烷
  参考文献：
  名称：

  Determination of the rate constant of hydrogen abstraction from triethylsilane by Re(CO)5 Radicals and use of the Re2(CO)10-Et3SiH system for the reduction of polychloroalkanes

  摘要：

  DOI：

  10.1007/bf00953933
• 作为产物：
  描述：

  1,1,1-trichloropentane 在 五羰基铁 、 N,N-二甲基苯胺 作用下， 生成 1,1-dichloropentane
  参考文献：
  名称：

  Chukovskaya,E.Ts. et al., Journal of Organic Chemistry USSR (English Translation), 1967, vol. 3, p. 1320 - 1324

  摘要：

  DOI：

文献信息

• Flash vacuum pyrolysis over magnesium. Part 1. Pyrolysis of benzylic, other aryl/alkyl and aliphatic halides
  作者：R. Alan Aitken、Philip K. G. Hodgson、John J. Morrison、Adebayo O. Oyewale

  DOI：10.1039/b108663d

  日期：2002.1.23

  Flash vacuum pyrolysis over a bed of freshly sublimed magnesium on glass wool results in efficient coupling of benzyl halides to give the corresponding bibenzyls. Where an ortho halogen substituent is present further dehalogenation gives some dihydroanthracene and anthracene. Efficient coupling is also observed for halomethylnaphthalenes and halodiphenylmethanes while chlorotriphenylmethane gives 4,4′-bis(diphenylmethyl)biphenyl. By using α,α′-dihalo-o-xylenes, benzocyclobutenes are obtained in good yield, while the isomeric α,α′-dihalo-p-xylenes give a range of high thermal stability polymers by polymerisation of the initially formed p-xylylenes. Other haloalkylbenzenes undergo largely dehydrohalogenation where this is possible, in some cases resulting in cyclisation. Deoxygenation is also observed with haloalkyl phenyl ketones to give phenylalkynes as well as other products. With simple alkyl halides there is efficient elimination of HCl or HBr to give alkenes. For aliphatic dihalides this also occurs to give dienes but there is also cyclisation to give cycloalkanes and dehalogenation with hydrogen atom transfer to give alkenes in some cases. For 5-bromopent-1-ene the products are those expected from a radical pathway but for 6-bromohex-1-ene they are clearly not. For 2,2-dichloropropane and 1,1-dichloropropane elimination of HCl occurs but for 1,1-dichlorobutane, -pentane and -hexane partial hydrolysis followed by elimination of HCl gives E,E-, E,Z- and Z,Z- isomers of the dialk-1-enyl ethers and fully assigned 13C NMR data are presented for these. With 6-chlorohex-1-yne and 7-chlorohept-1-yne there is cyclisation to give methylenecycloalkanes and -cycloalkynes. The behaviour of 1,2-dibromocyclohexane and 1,2-dichlorocyclooctane under these conditions is also examined. Various pieces of evidence are presented that suggest that these processes do not involve generation of free gas-phase radicals but rather surface-adsorbed organometallic species.

  在玻璃棉上覆盖一层新升华的镁,进行闪式真空热解,能有效促使苄基卤化物耦合生成相应的联苄。当有邻位卤素取代基存在时,进一步脱卤生成部分二氢蒽和蒽。卤甲基萘和二苯基甲烷也能高效耦合,而三苯基氯甲烷则生成4,4′-双(二苯甲基)联苯。用α,α′-二卤代邻二甲苯可以获得较高产率的苯并环丁烯,而异构的α,α′-二卤代对二甲苯,通过形成的对二甲苯的聚合,可以得到一系列高热稳定性的聚合物。其他卤代烃苯大体上会脱卤化氢,某些情况下能产生环化反应。同样可以观察到,苯基卤代烷烃脱去羰基生成苯乙炔以及其他产物。简单的烷基卤化物则高效地脱去HCl或HBr生成烯烃。脂肪族二卤化物也会发生这一反应生成二烯,但不发生环化反应生成环烷烃,或在某些情况下发生氢原子转移的脱卤反应生成烯烃。5-溴戊-1-烯的产物符合自由基途径的预期,但6-溴己-1-烯并不符合。2,2-二氯丙烷和1,1-二氯丙烷能脱去HCl,但1,1-二氯丁烷、戊烷和己烷则能部分水解,随后脱去HCl,生成E,E-, E,Z-和Z,Z-异构体二烷-1-烯基醚,并且得到了这些物质的13C NMR全归属数据。6-氯己-1-炔和7-氯庚-1-炔能发生环化反应生成亚甲基环烷烃和环炔烃。本文还考察了1,2-二溴环己烷和1,2-二氯环辛烷在上述条件下的行为。本文给出了众多种证据,表明这些反应过程不涉及气相自由基的形成,而是表面吸附的金属有机物种。
• [EN] PROCESS FOR PRODUCING AN AMINOPROPYNE OR ENAMINONE<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN AMINOPROPYNE OU D'UNE ÉNAMINONE
  申请人：AGENCY SCIENCE TECH & RES

  公开号：WO2013006143A1

  公开（公告）日：2013-01-10

  There is provided a process for producing an aminopropyne or an enaminone comprising the step of reacting a metal acetylide, an amine and a carbonyl-containing compound in the presence of a transition metal catalyst. There is also provided a process for producing an aminopropyne comprising the step of reacting a metal acetylide, an amine and a halide-containing compound in the presence of a transition metal catalyst at a reaction temperature of 50°C to 150°C. There are also provided processes to further synthesize the aminopropyne produced to obtain a butyneamine, another aminopropyne or a triazol.

  提供了一种生产氨基丙炔或烯胺酮的方法，包括在过渡金属催化剂存在下，通过反应金属乙炔、胺和含羰基化合物的步骤。还提供了一种生产氨基丙炔的方法，包括在反应温度为50°C至150°C下，在过渡金属催化剂存在下，通过反应金属乙炔、胺和含卤化物的化合物的步骤。还提供了进一步合成生产的氨基丙炔以获得丁炔胺、另一种氨基丙炔或三唑的方法。
• PIPERIDINYL AND PIPERAZINYL MODULATORS OF y-SECRETASE
  申请人：HO Chih Yung

  公开号：US20090105275A1

  公开（公告）日：2009-04-23

  The present invention relates to compounds of Formula I as shown below, wherein the definitions of Het, R 0 , R 1 R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are provided in the specification. Compounds of Formula I are useful for the treatment of diseases associated with γ-secretase activity, including Alzheimer's disease.

  本发明涉及如下所示的公式I的化合物，其中Het，R0，R1，R2，R3，R4，R5，R6，R7，R8和R9的定义在说明书中提供。公式I的化合物对于治疗与γ-分泌酶活性相关的疾病，包括阿尔茨海默病。
• HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
  申请人：LG CHEM, LTD.

  公开号：US20210139469A1

  公开（公告）日：2021-05-13

  A novel heterocyclic compound of Chemical Formula 1 and an organic light emitting device including the same. wherein one of Ar 1 to Ar 3 is of the following Chemical Formula 2, and one of Ar 4 to Ar 7 is a substituted or unsubstituted dibenzofuran; or a substituted or unsubstituted dibenzothiophene, the rest being hydrogen.

  化学式1的新型杂环化合物及包括该化合物的有机发光器件。 其中Ar1至Ar3中的一个为以下化学式2， Ar4至Ar7中的一个为取代或未取代的二苯并呋喃；或取代或未取代的二苯并噻吩，其余为氢。
• Site-Selective Aliphatic C–H Chlorination Using <i>N</i>-Chloroamides Enables a Synthesis of Chlorolissoclimide
  作者：Ryan K. Quinn、Zef A. Könst、Sharon E. Michalak、Yvonne Schmidt、Anne R. Szklarski、Alex R. Flores、Sangkil Nam、David A. Horne、Christopher D. Vanderwal、Erik J. Alexanian

  DOI：10.1021/jacs.5b12308

  日期：2016.1.20

  functionalization of aliphatic C-H bonds remain a paramount goal of organic synthesis. Free radical alkane chlorination is an important industrial process for the production of small molecule chloroalkanes from simple hydrocarbons, yet applications to fine chemical synthesis are rare. Herein, we report a site-selective chlorination of aliphatic C-H bonds using readily available N-chloroamides and apply this transformation

  脂肪族 CH 键的实际分子间官能化方法仍然是有机合成的首要目标。自由基烷烃氯化是从简单的烃类生产小分子氯烷烃的重要工业过程，但在精细化学合成中的应用很少。在本文中，我们报告了使用现成的 N-氯酰胺对脂肪族 CH 键进行位点选择性氯化，并将这种转化应用于氯利松克酰亚胺（一种具有强细胞毒性的拉丹二萜类化合物）的合成。这些反应以有用的化学产率递送烷基氯，底物作为限制试剂。值得注意的是，这种方法可以容忍底物不饱和，这通常对化学选择性、脂肪族 CH 功能化构成重大挑战。CH 氯化的空间和电子决定的位点选择性是已知的最具选择性的烷烃官能化之一，为化学合成提供了独特的工具。氯去菌酯的短合成具有高产、克级的紫苏内酯自由基 CH 氯化和三步/两锅法用于引入对所有 lissoclimides 和 hatrumaimides 都很重要的 β-羟基琥珀酰亚胺。初步分析表明，氯利沙克林和类似物对侵袭性黑色素瘤和前列

表征谱图