Qhov sib txawv tseem ceeb ntawm kev sib xyaw ua ke thiab kev sib koom ua ke yog qhov kev sib txuas ntawm cov kab hluav taws xob ntev dua thiab tsis muaj txiaj ntsig, qhov sib koom ua ke yog luv dua thiab ua tau zoo dua.
Lub sij hawm chemical synthesis yog hais txog cov txheej txheem uas cuam tshuam nrog kev hloov pauv ntawm cov tshuaj reactant lossis qee cov reactants rau hauv cov khoom lossis ntau yam khoom los ntawm ntau cov tshuaj tiv thaiv kab mob. Peb tuaj yeem ua cov txheej txheem tshuaj synthesis ntawm linear synthesis lossis convergent synthesis.
Dab tsi yog Linear Synthesis?
Linear synthesis yog cov txheej txheem tshuaj synthesis uas siv cov kev hloov pauv hloov pauv los hloov cov reactant lossis qee cov reactants rau hauv cov khoom lossis ntau yam khoom. Cov txheej txheem synthesis no suav nrog txoj kev ntev tshaj plaws rau kev tsim cov khoom lag luam. Yog li ntawd, cov txheej txheem yog ntev dua, thiab qhov tshwm sim yielding kuj qis dua qhov tshwj xeeb yield vim poob ntawm cov tebchaw uas tshwm sim thoob plaws hauv cov synthesis routing. Tag nrho cov tawm los sai sai poob nrog txhua kauj ruam cov tshuaj tiv thaiv. Cov txheej txheem tshuaj tiv thaiv no tseem ceeb heev hauv cov txheej txheem organic synthesis.
Daim duab 01: Ib qho piv txwv ntawm kev hloov pauv hloov pauv
Kev sib koom ua ke yog dab tsi?
Convergent synthesis yog cov txheej txheem tshuaj synthesis uas cov khoom xav tau yog tsim los ntawm cov txheej txheem tshuaj tiv thaiv, thiab cov khoom sib xyaw ua ke ntawm lwm cov tshuaj tiv thaiv. Hom txheej txheem synthesis no txawv ntawm linear synthesis vim tias cov txheej txheem no cuam tshuam nrog kev sib piv es tsis yog linear transformations. Lub convergent synthesis yog ib qho tseem ceeb nyob rau hauv kev txhim kho cov efficiency ntawm ib tug multistep synthesis txheej txheem. Txij li cov khoom tsim los ntawm kev sib xyaw ua ke ntawm cov khoom lag luam thiab tsis muaj kev poob qis ntawm cov txiaj ntsig ib qho tshuaj tiv thaiv, tag nrho cov txiaj ntsig tau siab heev.
Daim duab 02: Ib qho piv txwv ntawm kev sib koom ua ke
Convergent synthesis tseem ceeb hauv cov txheej txheem nyuaj xws li fragment coupling thiab ywj siab synthesis. Ntxiv mus, cov txheej txheem synthesis no zoo dua rau kev tsim cov molecules loj uas yog symmetrical. Lub symmetry yog ib qho tseem ceeb vim hais tias tom qab ntawd tsawg kawg yog ob daim ntawm cov khoom tuaj yeem tsim tau nyias. Piv txwv li. Dendrimer synthesis.
Dab tsi yog qhov txawv ntawm Kab thiab Convergent Synthesis?
Peb tuaj yeem ua cov txheej txheem tshuaj lom neeg los ntawm kev sib xyaw linear lossis sib koom ua ke. Linear synthesis yog cov txheej txheem tshuaj synthesis uas yog siv los hloov cov reactant lossis qee cov reactants rau hauv cov khoom lossis ntau yam khoom. Nyob rau hauv sib piv, convergent synthesis yog ib tug chemical synthesis txheej txheem nyob rau hauv uas tej daim ntawm cov khoom uas xav tau yog tsim los ntawm ib tug txheej ntawm cov tshuaj tiv thaiv, thiab cov pieces yog ua ke nrog rau ib leeg los ntawm lwm cov tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm linear thiab convergent synthesis yog tias linear synthesis ntev dua thiab tsawg dua, whereas convergent synthesis yog luv thiab ntau npaum.
Ntxiv mus, linear synthesis suav nrog kev hloov pauv hloov pauv, thaum sib koom ua ke suav nrog kev hloov pauv sib luag. Tsis tas li ntawd, lwm qhov sib txawv ntawm linear thiab convergent synthesis yog lawv cov txiaj ntsig. Nyob rau hauv linear synthesis, cov tawm los yog qis tshaj qhov xav tau whereas nyob rau hauv convergent synthesis, cov tawm los yog siab tshaj qhov xav tau.
Summary – Linear vs Convergent Synthesis
Linear synthesis thiab convergent synthesis yog ob txoj hauv kev uas cov tshuaj synthesis tuaj yeem ua tau. Qhov sib txawv tseem ceeb ntawm linear thiab convergent synthesis yog tias linear synthesis ntev dua thiab tsawg dua, whereas convergent synthesis yog luv thiab ntau npaum.
