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4-Chlorostyrene CAS: 1073-67-2
4-Chlorostyrene ndi mankhwala achilengedwe okhala ndi formula ya mankhwala C8H7Cl. Ili ndi msana wa styrene—wodziwika ndi gulu la vinyl lolumikizidwa ku mphete ya phenyl—ndi atomu ya chlorine yomwe ili pamalo a para (4) poyerekeza ndi gulu la vinyl. Kuyika kwapadera kwa atomu ya chlorine kumakhudza momwe mankhwalawo amagwirira ntchito komanso momwe amagwirira ntchito, zomwe zimapangitsa kuti ikhale yofunika kwambiri popanga mankhwala osiyanasiyana. 4-Chlorostyrene imatha kupangidwa kudzera mu chlorination ya styrene kapena kudzera mu electrophilic aromatic substitution reactions. Kapangidwe kake kapadera kamalola kuti igwire nawo ntchito zosiyanasiyana zamankhwala, makamaka mu njira zopopera.
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Allyl cyanoacetate CAS:13361-32-5
Allyl cyanoacetate ndi mankhwala achilengedwe okhala ndi formula ya molekyulu C7H9NO2. Ili ndi gulu la allyl ndi gawo la cyanoacetate, zomwe zimapangitsa kuti ikhale chinthu chogwiritsidwa ntchito kwambiri popanga zinthu zachilengedwe. Mankhwalawa nthawi zambiri amapangidwa kudzera mu reaction ya allyl bromide ndi sodium cyanide kutsatiridwa ndi esterification ndi acetic acid. Chifukwa cha kapangidwe kake kapadera, allyl cyanoacetate imawonetsa reactivity yomwe ingagwiritsidwe ntchito m'masinthidwe osiyanasiyana a mankhwala, kuphatikiza zowonjezera za nucleophilic ndi cycloaddition reactions. Zotsatira zake, imapezeka mu mankhwala, agrochemicals, ndi sayansi ya zinthu.
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9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide CAS:35948-25-5
9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide ndi mankhwala opangidwa ndi heterocyclic omwe ali ndi atomu ya phosphorous mkati mwa kapangidwe kake ka aromatic. Ali ndi dongosolo lapadera la maatomu a carbon, oxygen, ndi phosphorous, zomwe zimapangitsa kuti ikhale membala wofunikira wa banja la phosphaphenanthrene. Mankhwalawa amadziwika ndi makhalidwe ake apadera, kuphatikizapo kukhazikika kwa kutentha komanso kuthekera kwa reactivity mu kapangidwe ka organic. Chifukwa cha mawonekedwe ake, akopa chidwi m'magawo osiyanasiyana, makamaka mu polymer chemistry ndi sayansi ya zinthu, komwe amatha kukhala ngati maziko omangira zipangizo zapamwamba.
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ADIPIC ACID DIVINYL ESTER CAS:4074-90-2
Adipic acid divinyl ester ndi mankhwala achilengedwe okhala ndi formula ya mankhwala C12H18O4. Amapangidwa ndi magulu awiri a vinyl olumikizidwa ku adipic acid, yomwe ndi dicarboxylic acid yomwe imagwiritsidwa ntchito kwambiri popanga nayiloni ndi ma polima ena. Mankhwalawa nthawi zambiri amapangidwa kudzera mu esterization ya adipic acid ndi vinyl alcohol kapena zotumphukira zake. Kupezeka kwa magulu angapo a vinyl kumathandizira kuti igwire nawo ntchito zopomereza, zomwe zimapangitsa kuti ikhale yofunika kwambiri ngati monomer mu ntchito zosiyanasiyana. Kapangidwe kake kapadera kamapereka kusinthasintha popanga ma copolymer ndi zida zapadera.
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2-Chlorostyrene CAS:2039-87-4
2-Chlorostyrene ndi chinthu chachilengedwe chokhala ndi formula ya mankhwala C8H7Cl. Chimapangidwa ndi msana wa styrene—wodziwika ndi gulu la vinyl lolumikizidwa ku mphete ya phenyl—ndi atomu ya chlorine yomwe ili pamalo a ortho poyerekeza ndi gulu la vinyl. Kapangidwe kameneka kamapereka reactivity yapadera ndi makhalidwe, zomwe zimapangitsa kuti ikhale yofunika kwambiri pakati pa kupanga mankhwala osiyanasiyana. 2-Chlorostyrene ingapezeke kudzera mu chlorination ya styrene kapena kupangidwa mwachindunji kudzera mu electrophilic aromatic substitution. Kutha kwake kuchita zinthu zosiyanasiyana za mankhwala kumapangitsa kuti ikhale yothandiza pakugwiritsa ntchito mankhwala a polima ndi mankhwala apadera.
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3,4-Epoxycyclohexylmethyl methacrylate CAS:82428-30-6
3,4-Epoxycyclohexylmethyl methacrylate (ECHMMA) ndi monomer yapadera yomwe imadziwika ndi kukhalapo kwa gulu la epoxy ndi gulu logwira ntchito la methacrylate. Chophatikiza ichi chimaphatikiza reactivity ya epoxy ndi kusinthasintha kwa methacrylate, zomwe zimapangitsa kuti ikhale chinthu chofunikira kwambiri mu polymer chemistry. Nthawi zambiri imagwiritsidwa ntchito kupititsa patsogolo mphamvu zamakina komanso kukhazikika kwa kutentha kwa ma resin ochiritsidwa. ECHMMA imatha kudutsa njira zosiyanasiyana za polymerization, kuphatikiza polymerization ya free radical, yomwe imalola kuti iphatikizidwe mu mitundu yosiyanasiyana yopangira kuti ikhale yolimba komanso yolimba.
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2-Piperidineethanol CAS:1484-84-0
2-Piperidineethanol ndi mankhwala achilengedwe okhala ndi formula ya mankhwala C8H17NO. Ili ndi mphete ya piperidine—mphete yokhala ndi ziwalo zisanu ndi chimodzi yokhala ndi ma atomu asanu a kaboni ndi atomu imodzi ya nayitrogeni—yolumikizidwa ku gawo la ethanol. Kapangidwe kameneka kamapereka mawonekedwe apadera, zomwe zimapangitsa kuti ikhale mankhwala ofunika kwambiri mu kapangidwe ka mankhwala osiyanasiyana. 2-Piperidineethanol imatha kupangidwa kudzera mu alkylation ya piperidine ndi ethylene oxide kapena kudzera m'njira zina zopangira. Magulu ake ogwira ntchito amawathandiza kutenga nawo mbali muzochita zambiri zamankhwala, makamaka popanga mankhwala ophatikizana ndi mankhwala apadera.
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2,2,3,3-Tetrafluoropropyl methacrylate CAS:45102-52-1
2,2,3,3-Tetrafluoropropyl methacrylate ndi mankhwala achilengedwe okhala ndi fluorine okhala ndi formula ya molekyulu C7H8F4O2. Ili ndi gulu logwira ntchito la methacrylate, lomwe limalola polymerization, ndi gulu la tetrafluoropropyl lomwe limapereka zinthu zapadera monga mphamvu yochepa pamwamba komanso kukana mankhwala. Mankhwalawa amatha kupangidwa kudzera mu momwe tetrafluoropropanol imagwirira ntchito ndi methacrylic acid. Chifukwa cha kapangidwe kake ka mankhwala, 2,2,3,3-tetrafluoropropyl methacrylate imapereka makhalidwe ofunika kwambiri pa ntchito zosiyanasiyana mu zokutira, zomatira, ndi zipangizo zapamwamba.
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1-Chloro-3-methyl-2-butene CAS:503-60-6
1-Chloro-3-methyl-2-butene ndi mankhwala achilengedwe omwe amagawidwa ngati chloroalkene. Ali ndi atomu ya chlorine ndi mgwirizano wawiri mkati mwa kapangidwe kake, zomwe zimapatsa mawonekedwe apadera a reactivity. Mankhwalawa nthawi zambiri amapangidwa kudzera mu chlorination ya 3-methyl-2-butene. Fomula yake ya mankhwala ndi C5H9Cl, ndipo imagwira ntchito yofunika kwambiri pakupanga kwa organic. Kupezeka kwa halogen ndi alkene kumapangitsa kuti ikhale yothandiza kwambiri pakusintha kwa mankhwala osiyanasiyana, kuphatikizapo kusintha ndi kuwonjezera.
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2,2,2-TRIFLUOROETHYL P-TOLUENESULFONATE CAS:433-06-7
2,2,2-Trifluoroethyl p-toluenesulfonate ndi chinthu chopangidwa ndi organofluorine chokhala ndi formula ya mankhwala C10H10F3O3S. Chili ndi gulu la trifluoroethyl lolumikizidwa ku gulu la p-toluenesulfonate. Chomerachi chimadziwika ndi reactivity yake ndipo chimagwira ntchito ngati reagent yothandiza mu kapangidwe ka organic. Kupezeka kwa gulu la trifluoroethyl kumapereka mphamvu zapadera zamagetsi, zomwe zimapangitsa kuti chikhale chofunikira kwambiri pazochitika zokhudzana ndi ma nucleophiles. Kawirikawiri chimapangidwa kuchokera ku p-toluenesulfonic acid ndi ma trifluoroethylating agents, chomerachi chimagwiritsidwa ntchito m'magawo osiyanasiyana, makamaka m'mafakitale opanga mankhwala ndi agrochemical.
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2-(2-Hydroxyethyl)pyridine CAS:103-74-2
2-(2-Hydroxyethyl)pyridine ndi mankhwala achilengedwe okhala ndi formula ya mankhwala C8H11NO. Amapangidwa ndi mphete ya pyridine—yodziwika ndi kapangidwe kake ka aromatic kokhala ndi nayitrogeni yokhala ndi ziwalo zisanu ndi chimodzi—yolumikizidwa ku gulu la 2-hydroxyethyl. Kuphatikiza kwapadera kumeneku kumapereka mawonekedwe osiyana, zomwe zimapangitsa kuti ikhale yothandiza pa ntchito zosiyanasiyana, makamaka pakupanga kwachilengedwe ndi kupanga mankhwala. Mankhwalawa amatha kupangidwa kudzera m'njira monga alkylation kapena hydroxyalkylation ya pyridine derivatives. Magulu ake ogwira ntchito amawonjezera reactivity yake, zomwe zimamuthandiza kutenga nawo mbali muzochita zosiyanasiyana zamakemikolo.
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Hinokitiol CAS:499-44-5
Hinokitiol, yomwe imadziwikanso kuti β-thujaplicin, ndi mankhwala achilengedwe ochokera ku mitengo yosiyanasiyana ya coniferous, makamaka yomwe ili m'banja la Cupressaceae. Mankhwala ake ndi C10H14O2, ndipo ali ndi kapangidwe kake ka bicyclic komwe kamathandizira ku mitundu yosiyanasiyana ya zinthu. Hinokitiol imadziwika chifukwa cha ntchito zake zothana ndi mabakiteriya, antioxidant, komanso anti-inflammatory, zomwe zimapangitsa kuti ikhale mankhwala ofunikira kwambiri m'mankhwala achikhalidwe komanso m'magwiritsidwe ntchito amakono. Mankhwalawa amatha kuchotsedwa mumtima mwa mitengo monga cypress yaku Japan (hinoki) ndipo akhala akugwiritsidwa ntchito m'mbiri ya zikhalidwe zaku East Asia chifukwa cha zabwino zake zochizira.
