2-methyl anthraquinone hmoovyog ib tug series ntawm 2-alkyl hloov anthraquinone khoom. Nws yog ib qho tseem ceeb ntawm cov organic nruab nrab. Nws kuj yog siv los npaj cov tshuaj photosensitive, dyes, lub teeb tshuaj ntsuam xyuas resins, thiab tshuaj thiab tshuaj tua kab intermediates.
Hauv tsab xov xwm dhau los, peb tau qhia txog daim ntawv thov ntawm 2-alkyl anthraquinone hauv dyes. Hauv tsab xov xwm no, peb yuav xa lwm daim ntawv thov.
Daim ntawv thov 1: nyob rau hauv cov txheej txheem papermaking, 2-Methylanthraquinone yog ib tug heev npaum additive. Nws tuaj yeem nkag mus rau sab hauv ntawm cov ntoo chips thiab txo mus rau 2-Methylanthraquinone. Nws tsis ruaj khov thiab yooj yim rau oxidize. Nyob rau hauv lub voj voog redox no, cov khoom hauv cov ntoo chips yog oxidized, uas ua rau cov tshuaj tiv thaiv thiab txhim kho pulping efficiency.
Daim ntawv thov 2: nyob rau hauv cov tshuaj, alkyl anthraquinones kuj muaj cov nqi tshuaj tseem ceeb. Raws li kev tshawb fawb tsis tu ncua nyob rau theem no, cov tshuaj tua kab mob, tshuaj tiv thaiv - mob, tiv thaiv - kab mob thiab tua cov qog hlwb ntawm cov tshuaj anthraquinone tau tshawb nrhiav tsis tu ncua, thiab qee qhov tau siv rau kev ua haujlwm tiv thaiv kab mob. .
Application 3: in terms of organic synthesis, a synthetic method of 3,3 '- dimethyl-9,9' - biathlete has been developed. The method includes the following steps:
(1) Ntxiv 2-Methylanthraquinone, acetic acid, tin particles thiab concentrated hydrochloric acid rau hauv cov tshuaj tiv thaiv lub raj mis, do thiab txias, ncuav cov tshuaj tiv thaiv rau hauv dej, lim thiab recrystallize kom tau 3-methyl anthraquinone khoom;
(2) Add 3-methylxanthine, acetic acid, metal particles and concentrated hydrochloric acid obtained in step (1) into the reaction bottle, stir the reaction, cool, filter and recrystallize to get 3,3 '- dimethyl-9,9' - biathlete. The metal particles are zinc particles or tin particles, and the molar ratio of 3-methylxanthine to metal is 1 ∶ 3 1 ∶ 10. Note: the invention is mainly used to prepare 3,3 '- dimethyl-9,9' - biathletes.
Synthetic 2-alkyl anthraquinone -- styrene txoj kev
Txoj kev styrene qhib lub tswv yim tshiab rau kev sib txuas ntawm alkyl anthraquinone. Los ntawm kev pom, txoj kev styrene tsis haum rau cov khoom siv raw xws li anthracene lossis naphthalene. Tseem, pheej yig dua thiab yooj yim muaj styrene yog qhov tseem ceeb hauv kev sib txuas ntawm alkyl anthraquinone. Nyob rau hauv acidic tej yam kev mob, vanadium pentoxide, titanium oxide thiab antimony trioxide yog siv los ua catalysts rau oxidation cov tshuaj tiv thaiv oxidize thiab cyclize styrene los tsim alkyl indene. Hauv cov kauj ruam no, cov qoob loo tuaj yeem ncav cuag ntau dua 85 feem pua, tom qab ntawd corrupted thiab lub cev qhuav dej kom tau txais 2-methyl anthraquinone hmoov
Cov txheej txheem kuj tseem cuam tshuam rau cov xwm txheej hnyav, kev xaiv tsis zoo thiab ntau yam los ntawm - cov khoom, yog li nws tsis tau ua lag luam.