Hauv kev tshawb fawb thiab kev tsim kho thiab tsim cov tshuaj intermediates, kev txawj ntse thiab hloov pauv ntawm kev siv cov tswv yim tsis tau tsuas yog txhim kho synthesis efficiency thiab cov khoom zoo, tab sis kuj txo cov kev pheej hmoo ntawm kev nyab xeeb thiab cov nqi tsim khoom. Cov txheej txheem no suav nrog qhov ua tiav ntawm kev ua haujlwm ntev - lub sijhawm xyaum thiab kev paub txog kev sib koom tes, thiab muaj kev taw qhia tseem ceeb rau kev txhawb nqa kev txhim kho kom zoo ntawm kev lag luam nruab nrab.
Ua ntej, cov txheej txheem tseem ceeb yog rationally xaiv cov khoom pib thiab cov txheej txheem hluavtaws uas phim lub hom phiaj molecule. Tau ntsib nrog cov txheej txheem molecular complex, yuav tsum tau muab qhov tseem ceeb rau kev ntsuam xyuas qhov muaj, tus nqi, thiab cov tshuaj tiv thaiv kev sib raug zoo ntawm cov khoom siv raw, tsis txhob muaj txoj hauv kev uas yooj yim tsim los ntawm cov khoom uas nyuaj rau kev sib cais. Siv retrosynthetic tsom xam los disassemble lub hom phiaj molecule tuaj yeem txheeb xyuas daim ntawv cog lus tseem ceeb - ua cov kauj ruam, yog li npaj cov khoom sib txuas yooj yim thiab ruaj khov, txo cov kev tiv thaiv tsis tsim nyog - kev tiv thaiv kab mob.
Qhov thib ob, kev tswj xyuas meej ntawm cov tshuaj tiv thaiv ncaj qha cuam tshuam rau purity thiab tawm los ntawm cov nruab nrab. Hloov maj mam hloov ntawm qhov kub thiab txias, concentration, pub tus nqi, thiab lub sijhawm tshuaj tiv thaiv feem ntau ua rau muaj kev cuam tshuam sab lossis hloov stereoselectivity. Hauv kev xyaum, siv Kev Tsim Kho Kev Tshawb Fawb (DoE) txhawm rau tshuaj xyuas qhov sib txawv ntawm qhov sib txawv tuaj yeem pom qhov ntsuas qhov ntsuas qhov zoo tshaj plaws. Rau cov tshuaj tiv thaiv exothermic heev, gradient noj thiab sab nraud ncig cua txias yuav tsum tau ua hauj lwm los tiv thaiv overheating hauv zos uas yuav ua rau decomposition los yog muaj kev nyab xeeb.
Thib peb, kev siv cov catalysts thiab reagents zoo yog qhov tseem ceeb rau kev txhim kho kev xaiv. Xaiv cov catalysts nquag thiab xaiv raws li hom tshuaj tiv thaiv, xws li chiral ligands ua ke nrog kev hloov pauv hlau catalysts rau asymmetric synthesis, tso cai rau ib qho - lub sij hawm tsim ntawm lub hom phiaj stereoconfiguration, tshem tawm qhov xav tau kev daws teeb meem tom ntej. Rau cov lus pom zoo xws li cov tshuaj tiv thaiv redox thiab esterification, rov ua dua thiab qis dua - cov tshuaj toxicity reagents yog nyiam, txhim kho cov txheej txheem kev nyab xeeb thiab pab txhawb kev tsim ntsuab.
Thib plaub, cov txheej txheem tsom xam thiab kev soj ntsuam online pab tswj kev ua haujlwm zoo hauv lub sijhawm. Taw qhia hauv - qhov chaw kuaj xyuas txoj hauv kev xws li nyob ze -infrared spectroscopy, Raman spectroscopy, lossis huab hwm coj spectrometry tso cai rau kev ntes cov kev hloov pauv hauv cov ntsuas tseem ceeb thaum lub sijhawm cov tshuaj tiv thaiv, ua kom cov txheej txheem hloov kho raws sijhawm thiab tiv thaiv kev sib sau ntawm cov khoom sib txawv. Ua ke nrog kev tswj xyuas cov txheej txheem txheeb xyuas, cov txiaj ntsig tshawb pom tuaj yeem hloov pauv mus rau kev ntsuas kev txhim kho.
Thaum kawg, cov txheej txheem kev nyab xeeb thiab kev tiv thaiv ib puag ncig yuav tsum tau siv thoob plaws hauv tag nrho cov txheej txheem. Tsim kom raug kaw thiab qhov cua tshuab, thiab saib xyuas qhov tseem ceeb ntawm kev siv qis - cov kuab tshuaj txaus ntshai thiab cov reactors ntws tsis tu ncua, tuaj yeem txo qhov kev pheej hmoo ntawm kev raug thiab pov tseg. Kev siv cov peev txheej los ntawm - cov khoom lag luam thiab cov cawv niam kuj yog ib txoj hauv kev los txhim kho kev lag luam thiab ib puag ncig.
Nyob rau hauv cov ntsiab lus, cov tswv yim tswv yim nyob rau hauv lub teb ntawm chemical intermediates npog txoj kev npaj, kev kho kom zoo, catalysis tswv yim, txheej txheem saib xyuas, thiab ntsuab siv. Kev paub thiab kev koom ua ke cov kev txawj no tuaj yeem pab ua tiav cov hom phiaj ntawm kev ua tau zoo, kev ua haujlwm siab, thiab kev ruaj khov hauv kev lag luam muaj kev sib tw.