e/Substitution reaction

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has glosseng: In a substitution reaction, a functional group in a particular chemical compound is replaced by another group . In organic chemistry, the electrophilic and nucleophilic substitution reactions are of prime importance. Organic substitution reactions are classified in several main organic reaction types depending on whether the reagent that brings about the substitution is considered an electrophile or a nucleophile, whether a reactive intermediate involved in the reaction is a carbocation, a carbanion or a free radical or whether the substrate is aliphatic or aromatic. Detailed understanding of a reaction type helps to predict the product outcome in a reaction. It also is helpful for optimizing a reaction with regard to variables such as temperature and choice of solvent.
lexicalizationeng: Substitution reactions
lexicalizationeng: Substitution Reaction
subclass of(noun) (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"
reaction, chemical reaction
has instancee/Aminolysis
has instancee/Gabriel synthesis
has instancee/Geminal halide hydrolysis
has instancee/Hydrazone iodination
has instancee/Solvolysis
has instancee/Thiolysis
has instancee/Transamidification
has instancee/fr/Substitution nucléophile aromatique
has instancee/ja/辻・トロスト反応
Meaning
Czech
has glossces: Substituční reakce je chemická reakce, při které je atom nebo funkční skupina v molekule vyměněna za jiný atom nebo skupinu. Substituce je charakteristická reakce nasycených a aromatických uhlovodíků.
lexicalizationces: Substituční reakce
Danish
has glossdan: En substitution (eller en substitutionsreaktion) er en kemisk reaktion, hvor et atom (eller en atomgruppe) udskiftes med et andet atom (eller atomgruppe).
lexicalizationdan: substitution
German
has glossdeu: In der Chemie bezeichnet die Substitution (spätlateinisch substituere: ersetzen) eine chemische Reaktion, bei der Atome oder Atomgruppen in einem Molekül durch ein anderes Atom oder eine andere funktionelle Gruppe (Substituenten) ersetzt werden.
lexicalizationdeu: Substitution
Estonian
has glossest: Asendusreaktsioon on anorgaanilises keemias keemiline reaktsioon, mille tulemusena keemilise ühendi molekulis ühe keemilise elemendi aatomid asenduvad teise omadega. Sellise reaktsiooni teine lähteaine ja teine saadus on lihtaine.
lexicalizationest: Asendusreaktsioon
Finnish
has glossfin: Substituutio on kemiallinen reaktio, jossa atomi tai atomiryhmä korvatuu toisella atomilla tai atomiryhmällä. Reaktiossa syntyy myös sivutuote. Ensimmäisiä tutkittuja substituutioreaktioita olivat alkaanien halogenoinnit. Substituutioreaktiota esiintyy alkaaneilla, sykloalkaaneilla ja aromaattisilla hiilivedyillä. Esimerkiksi etaanin vetyatomi korvautuu klooriatomilla radikaalisubstituutiossa: CH3CH3 + Cl2 \rightarrow CH3CH2Cl + HCl.
lexicalizationfin: substituutio
French
lexicalizationfra: Réaction de substitution
Hebrew
has glossheb: תגובת התמרה היא תגובה כימית בה קבוצה כלשהי הנמצאת על גבי המולקולה מוחלפת בקבוצה אחרת. ישנם ארבעה סוגים עיקריים של תגובות התמרה: התמרה רדיקלית, התמרה נוקלאופילית מסדר ראשון, התמרה נוקלאופילית מסדר שני והתמרה אלקטרופילית.
lexicalizationheb: תגובת התמרה
Croatian
has glosshrv: Supstitucija je u organskoj kemiji reakcija kod koje se atom ili dio molekule zamijenjuje nekim drugim atomom ili skupinom atoma.
lexicalizationhrv: Supstitucija
Hungarian
has glosshun: Szubsztitúciónak (helyettesítéses reakciónak) nevezzük azt a kémiai reakciót, amelyben a szerves vegyület egy atom(csoport)ja egy másik atom(csoport)ra cserélődik ki melléktermék képződése közben.
lexicalizationhun: szubsztitúció
Indonesian
lexicalizationind: Reaksi substitusi
Italian
has glossita: In una reazione di sostituzione, un gruppo di un particolare composto chimico è sostituito da un altro gruppo. In chimica organica, le reazioni di sostituzione elettrofila o nucleofila sono di primaria importanza: le reazioni di sostituzione organiche sono classificate in diverse categorie a seconda che: * il reagente che porta alla sostituzione sia elettrofilo o nucleofilo; * un intermedio reattivo coinvolto nella reazione sia un carbocatione, un carbanione o un radicale libero; * il substrato sia alifatico o aromatico. Uno studio appropriato del tipo di reazione permette una corretta predizione sul prodotto risultante. Aiuta anche ad ottimizzare la reazione con scelta corretta di variabili come la temperatura o il solvente.
lexicalizationita: Reazione di sostituzione
Japanese
has glossjpn: 置換反応(ちかんはんのう)とは有機化学において、化合物の同一原子上で置換基が置き換わる化学反応のことを指す。一般的に結合エネルギーが高い結合から結合エネルギーの低い結合へと置き換わる反応が進行しやすい。
lexicalizationjpn: 置換反応
Korean
has glosskor: 치환반응이란 특정 화합물의 작용기가 다른 작용기로 교체되는 반응을 뜻한다. 유기화학에서는 친전자체 또는 친핵체에 의한 치환이 가장 중요하게 여겨진다. 유기화학에서의 치환반응은 치환이 친전자체 아니면 친핵체에 의해서 일어난 것인지, 반응 중간체로 탄소 양이온, 탄소 음이온, 자유 라디칼 중 어떠한 것이 존재하는지, 기질이 지방족 탄화수소인지 방향족 탄화수소인지에 따라 여러가지로 분류될 수 있다. 치환반응을 이용하면 엄청나게 다양한 수의 유기분자를 합성할 수 있다.
lexicalizationkor: 치환 반응
lexicalizationkor: 치환반응
Macedonian
has glossmkd: Во супституциската реакција (или реакција на замена), една функционална група од некое хемиско соединение се заменува со друга група.
lexicalizationmkd: супституција
Dutch
has glossnld: Een substitutiereactie is een chemische reactie waarin een atoom(groep) (A) wordt vervangen door een ander atoom(groep) (Q). Hierbij wordt een σ-binding doorbroken (C-A), en vervangen door een nieuwe binding (C-Q).
lexicalizationnld: substitutiereactie
Norwegian
has glossnor: Substitusjonsreaksjon er en type av organisk reaksjon der en funksjonell gruppe i en kjemisk forbindelse blir erstattet av en annen gruppe.
lexicalizationnor: substitusjonsreaksjon
Portuguese
has glosspor: Numa reação de substituição, um grupo funcional numa molécula é substituído por outro.
lexicalizationpor: Reação de substituição
Russian
has glossrus: Реакции замещения  — химические реакции, в которых одни функциональные группы, входящие в состав химического соединения, меняются на другие группы. Реакции замещения обозначают английской буквой «S».
lexicalizationrus: Реакции замещения
Castilian
has glossspa: Una reacción de sustitución es aquella donde un átomo o grupo en un compuesto químico es sustituido por otro átomo o grupo.
lexicalizationspa: Reaccion de sustitucion
lexicalizationspa: Reacción de sustitución
Swedish
has glossswe: En substitutionsreaktion är en reaktion där en substituent byts ut mot en annan. Detta finns två huvudtyper av substitutionsreaktioner: *SN1-reaktion *SN2-reaktion.
lexicalizationswe: substitutionsreaktion
Vietnamese
has glossvie: Phản ứng thế trong hóa học được hiểu theo hóa vô cơ và hóa hữu cơ hơi khác nhau một chút.
lexicalizationvie: Phản ứng thế
Chinese
has glosszho: 在取代反應中,化合物的一个官能团被另一个官能团所取代。在有機化學中,親電子和親核性取代反應非常重要。
lexicalizationzho: 取代反应
lexicalizationzho: 取代反應
Media
media:imgAcylsubstitution.gif
media:imgBenz4.png
media:imgElectrophilic aromatic substitution schema.PNG
media:imgElectrophilic aromatic substitution.svg
media:imgEthaanbromering.png
media:imgFriedelCr-2.png
media:imgMesitylene-2D-skeletal.png
media:imgNucleophilic aromatic substitution example.PNG
media:imgO-xylene.png
media:imgPhenol-2D-skeletal.png
media:imgSreaction.png
media:imgSubstitutie algemeen.png
media:imgSubstitutie broommethaan2.png
media:imgSubstitutionReaction.svg
media:imgToluol.svg

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