氟苯

氟苯
IUPAC名
Fluorobenzene
别名 Phenyl fluoride
Monofluorobenzene
识别
CAS号 462-06-6  checkY
PubChem 10008
ChemSpider 9614
SMILES
 
  • Fc1ccccc1
InChI
 
  • 1/C6H5F/c7-6-4-2-1-3-5-6/h1-5H
InChIKey PYLWMHQQBFSUBP-UHFFFAOYAM
Beilstein 1236623
Gmelin 49856
UN编号 2387
ChEBI 5115
KEGG C11272
性质
化学式 C6H5F
摩尔质量 96.103 g·mol⁻¹
外观 无色液体
密度 1.025 g/mL, 液体
熔点 −40 °C
沸点 84–85 °C
溶解性
结构
分子构型 平面型
危险性
警示术语 R:R36, R37, R38
安全术语 S:S16, S26, S36
NFPA 704
3
 
0
 
相关物质
相关卤代苯 氯苯
溴苯
碘苯
相关化学品
二氟苯
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

氟苯是有机化合物,分子式为C6H5F,通常简写为PhF。这种物质是的衍生物,原子与苯环直接相连。其熔點為-44℃,低於苯,這是由於氟取代基破壞苯環的對稱性,使分子無法如未取代的苯一般良好堆疊而結晶。相比之下,其沸点只与苯相差4℃。

制备

在实验室中,氟苯通常由氟硼酸芳香重氮盐加热分解制备。[1]

PhN2BF4 → PhF + BF3 + N2

使用火焰加热氟硼酸芳香重氮盐,例如PhN2BF4,反应生成两种挥发性物质:三氟化硼和氟苯,因为沸点不同可以被较容易分离。

氟苯在1886年由波恩大学O.瓦拉赫(O. Wallach)首次报道,他以重氮盐为起始原料,通过两步反应制备了氟苯。氯化重氮苯先被转化成它的哌啶盐,然后用氢氟酸使它分解。

[PhN2]Cl + 2 C5H10NH → PhN=N-NC5H10 + [C5H10NH2]Cl
PhN=N-NC5H10 + 2 HF → PhF + N2 + [C5H10NH2]F

一个有趣的历史事实: 在瓦拉赫时代,氟元素的符号是“Fl”。因此,它的论文副标题是“Fluorbenzol, C6H5Fl”。[2]

这种合成是通过环戊二烯二氟卡宾的反应实现的。先进行三元环的扩大,随后消除氟化氢

反应

氟苯是一种相对惰性的化合物,因为C–F键很强。氟苯对于高活性的物质是一种有用的溶剂,但一种金属配合物已经制得。[3]

[(C5Me5)2Ti(FC6H5)]+的结构——一种氟苯的配合物。

氟苯继续氟化主要产物为1,2-二氟苯[來源請求]

参考资料

  1. ^ Flood, D. T. (1943). "Fluorobenzene". Org. Synth.; Coll. Vol. 2: 295. .
  2. ^ Wallach, O. “Über einen Weg zur leichten Gewinnung organischer Fluorverbindungen” (Concerning a method for easily preparing organic fluorine compounds) Justus Liebig's Annalen der Chemie, 1886, Volume 235, p. 255–271; doi:10.1002/jlac.18862350303.
  3. ^ R.N. Perutz and T. Braun “Transition Metal-mediated C–F Bond Activation” Comprehensive Organometallic Chemistry III, 2007, Volume 1, p. 725–758; doi:10.1016/B0-08-045047-4/00028-5.


Read other articles:

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: You Can Get It All – news · newspapers · books · scholar · JSTOR (March 2012) (Learn how and when to remove this template message) 2009 single by Bow Wow featuring Johntá AustinYou Can Get It AllSingle by Bow Wow featuring Johntá Austinfrom the album New Jack...

 

Kupu-kupu elang Acherontia atropos ♀ MHNT Acherontia atropos ♀ △ MHNT Klasifikasi ilmiah Kerajaan: Animalia Filum: Arthropoda Kelas: Insecta Ordo: Lepidoptera Famili: Sphingidae Genus: Acherontia Spesies: A. atropos Nama binomial Acherontia atropos(Linnaeus, 1758) Peta penyebaran (merah: penyebaran sepanjang tahun; jingga: kemungkinan penyebaran pada musim panas) Sinonim Sphinx atropos Linnaeus, 1758 Acherontia sculda Kirby, 1877 Acherontia solani Oken, 1815 Acherontia atropos cha...

 

Gua ToakalaLeang Toakala, Leang Towukala, Gua TowukalaLokasiDesa Jenetaesa, Kecamatan Simbang, Kabupaten Maros, Sulawesi Selatan, IndonesiaPanjang80 mGeologikarst / batu kapur / batu gampingSitus webvisit.maroskab.go.idcagarbudaya.kemdikbud.go.idkebudayaan.kemdikbud.go.id/bpcbsulsel/ Gua Toakala atau Leang Toakala (Inggris: Toakala Cave ) adalah sebuah gua di Kawasan Karst Maros-Pangkep, bagian area Taman Wisata Alam Bantimurung di Taman Nasional Bantimurung-Bulusaraung. Lokasi gua ini s...

The Normal HeartPoster rilis televisiBerdasarkanThe Normal Heartoleh Larry KramerSkenarioLarry KramerSutradaraRyan MurphyPemeran Mark Ruffalo Matt Bomer Taylor Kitsch Jim Parsons Julia Roberts MusikCliff MartinezNegara asalAmerika SerikatBahasa asliInggrisProduksiProduserScott FergusonSinematografiDanny ModerPenyuntingAdam PennDurasi132 menitRumah produksi Blumhouse Productions HBO Films Plan B Entertainment Ryan Murphy Productions 20th Century Fox Television DistributorHBORilis asliRilis 25...

 

This article is about the 2011 film. For the Pokémon, see List of Pokémon (102–151) § Exeggcute. For the song, see Mory Kanté. 2011 Japanese filmTamatama(たまたま)Film posterDirected byMayumi KomatsuWritten byMayumi KomatsuStarringYū AoiRelease date October 15, 2011 (2011-10-15)[1] Running time53 minutesCountryJapanLanguageJapanese Tamatama (たまたま, Chance)[1] is a 2011 Japanese film, a drama directed by Mayumi Komatsu.[2][3...

 

Pour les articles homonymes, voir Klein. Melanie KleinBiographieNaissance 30 mars 1882VienneDécès 22 septembre 1960 (à 78 ans)LondresNom de naissance Melanie ReizesNationalité Autrichienne, BritanniqueFormation Université de VienneActivité PsychanalysteEnfant Melitta SchmidebergAutres informationsMembre de Association psychanalytique hongroiseSociété britannique de psychanalyseBerliner Psychoanalytische Vereinigung (d)Influencée par Sigmund FreudSite web (en) www.melanie-k...

Bukit Zaitunהר הזיתיםTitik tertinggiKetinggian818 m (2.684 ft)GeografiBukit ZaitunBukit Zaitun dekat YerusalemPegununganYudea Bukit Zaitun, ~ tahun 1899 Bukit Zaitun Ibrani: הר הזיתים, Har HaZeitim (Har: bukit, Ha-Zeitim:Zaitun);Arab: جبل الزيتون, الطورcode: ar is deprecated , Jebel az-Zeitun; Inggris: Mount of Olives atau Mount Olivet) adalah pegunungan di timur Yerusalem dengan 3 puncak yang membentang dari utara ke selatan.[1] Puncak...

 

Jeff Merkley Portrait officiel de Jeff Merkley (2017). Fonctions Sénateur des États-Unis En fonction depuis le 3 janvier 2009(15 ans, 3 mois et 14 jours) Élection 4 novembre 2008 Réélection 4 novembre 2014 3 novembre 2020 Circonscription Oregon Législature 111e, 112e, 113e, 114e, 115e, 116e, 117e et 118e Groupe politique Démocrate Prédécesseur Gordon Smith 64e président de la Chambre des représentants de l'Oregon 3 janvier 2007 – 2 janvier 2009(1 an, 11 ...

 

Canton d'Hallencourt[1] Situation du canton d'Hallencourt[1] dans le département de Somme. Administration Pays France Région Hauts-de-France Département Somme Arrondissement(s) Arrondissement d'Abbeville Chef-lieu Hallencourt Conseiller général Mandat Claude Jacob 2008-2015 Code canton 80 23 Démographie Population 7 051 hab. (1999) Densité 53 hab./km2 Géographie Coordonnées 49° 59′ 32″ nord, 1° 52′ 40″ est Superficie 133,15 ...

Historic region of the Czech Republic For the village in eastern Poland, see Zaolzie, Lublin Voivodeship. Territorial evolution of Polandin the 20th century Pre-World War II Revolution in Congress Poland (1905–1907) Ostrowiec Republic Zagłębie Republic Separation of Kholm Governorate from Congress Poland and annexation into Russian Kiev General Governorate (1913) Act of 5th November by the Central Powers proclaiming Kingdom of Poland (1916) Central Powers-Ukrainian People's Republic/Ukrai...

 

The HoursVirginia Woolf (Nicole Kidman) in una scena del filmLingua originaleinglese Paese di produzioneStati Uniti d'America Anno2002 Durata120 min Generedrammatico RegiaStephen Daldry SoggettoMichael Cunningham SceneggiaturaDavid Hare FotografiaSeamus McGarvey MontaggioPeter Boyle Effetti specialiStuart Brisdon MusichePhilip Glass, Burkhard von Dallwitz ScenografiaMaria Djurkovic CostumiAnn Roth Interpreti e personaggi Nicole Kidman: Virginia Woolf Julianne Moore: Laura Brown Meryl Streep: ...

 

Численность населения республики по данным Росстата составляет 4 003 016[1] чел. (2024). Татарстан занимает 8-е место по численности населения среди субъектов Российской Федерации[2]. Плотность населения — 59,00 чел./км² (2024). Городское население — 76,72[3] % (20...

Generalization of a quotient by an equivalence relation to objects in an arbitrary category In category theory, a coequalizer (or coequaliser) is a generalization of a quotient by an equivalence relation to objects in an arbitrary category. It is the categorical construction dual to the equalizer. Definition A coequalizer is a colimit of the diagram consisting of two objects X and Y and two parallel morphisms f, g : X → Y. More explicitly, a coequalizer of the parallel morphisms f and ...

 

London Underground station Stockwell The station entranceStockwellLocation of Stockwell in Greater LondonLocationStockwellLocal authorityLambethManaged byLondon UndergroundOwnerLondon UndergroundNumber of platforms4Fare zone2London Underground annual entry and exit2018 10.89 million[1]2019 11.08 million[2]2020 5.37 million[3]2021 4.61 million[4]2022 7.46 million[5]Key dates4 November 1890Opened (C&SLR, as a terminus)3 June 1900Became through station...

 

2020年夏季奥林匹克运动会波兰代表團波兰国旗IOC編碼POLNOC波蘭奧林匹克委員會網站olimpijski.pl(英文)(波兰文)2020年夏季奥林匹克运动会(東京)2021年7月23日至8月8日(受2019冠状病毒病疫情影响推迟,但仍保留原定名称)運動員206參賽項目24个大项旗手开幕式:帕维尔·科热尼奥夫斯基(游泳)和马娅·沃什乔夫斯卡(自行车)[1]闭幕式:卡罗利娜·纳亚(皮划艇)&#...

2020年夏季奥林匹克运动会马来西亚代表團马来西亚国旗IOC編碼MASNOC马来西亚奥林匹克理事会網站olympic.org.my(英文)2020年夏季奥林匹克运动会(東京)2021年7月23日至8月8日(受2019冠状病毒病疫情影响推迟,但仍保留原定名称)運動員30參賽項目10个大项旗手开幕式:李梓嘉和吳柳螢(羽毛球)[1][2]閉幕式:潘德莉拉(跳水)[3]獎牌榜排名第74 金牌 銀牌 銅�...

 

For unnamed numerical constants, see Magic number (programming) § Unnamed numerical constants. The magic constant or magic sum of a magic square is the sum of numbers in any row, column, or diagonal of the magic square. For example, the magic square shown below has a magic constant of 15. For a normal magic square of order n – that is, a magic square which contains the numbers 1, 2, ..., n2 – the magic constant is M = n ⋅ n 2 + 1 2 {\displaystyle M=n\cdot {\frac {n^{2}+1}{2}}...

 

Reading and writing skills that are inadequate to manage daily living and employment tasks Part of a series onReading Learning to read Reading readiness Vocabulary development Vocabulary learning Scientific theories and models Dual route theory Simple view of reading Science of reading Scarborough's Reading Rope The active view of reading model Cognitive processes Comprehension Phonemic awareness Phonological awareness Subvocalization Word recognition Reading instruction Analytic phonics Basa...

American basketball player Tristen NewtonNewton in 2023Personal informationBorn (2001-04-26) April 26, 2001 (age 23)Pensacola, Florida, U.S.Listed height6 ft 5 in (1.96 m)Listed weight195 lb (88 kg)Career informationHigh schoolBurges (El Paso, Texas)College East Carolina (2019–2022) UConn (2022–2024) PositionPoint guard / shooting guardCareer highlights and awards 2× NCAA champion (2023, 2024) NCAA Final Four Most Outstanding Player (2024) Consensus first-te...

 

Short story by Edgar Allan Poe This article is about the short story. For the American post-hardcore band, see The Oval Portrait (band). The Oval PortraitShort story by Edgar Allan PoeIllustration for Tales and poems – vol. 2 published in the 1800sOriginal titleLife in DeathCountryUnited StatesLanguageEnglishGenre(s)HorrorPublicationPublisherGraham's MagazineMedia typePrint (periodical)Publication dateApril 1842 The Oval Portrait is a horror short story by American writer Edgar Allan P...