
pratikriyashilata-nivad tatva

rasayanshastrat pratikriyashilata-nivad tatva kinwa aar. ess. pii. asey sangate qee rasayanik pratikriyanmadhye adhik pratikriyashil rasayanik sanyug kinwa pratikriyashil madhyavarti qamee nivadak asate. yaa sandarbhat nivadakta hii pratikriya darache gunottar darshavate.
heey tattva samanyatah 1970 chya dashkaparyant sweekarle gele hote, jevha barech apavad disu lagale. heey tattva aata aprachalit manale jaate.
junya sendriya rasayanshastrachya pathyapustakanmadhye aadhalanare aar. ess. pii. chey eka utkrusht udaharan sadhya alkenchya mukt muldravyanchya halogenationshi sambandhit aahe. tulanene abhikriyashil bromin pramukhyane 2-methylbutanes 2-bromo-2-methylbutaneshy abhikriya karate, tarr adhik abhikriyashil chlorines abhikriyecha parinam charahi regioisomerschya mishranat hoto.
aar. ess. pii. chey aanakhi eka udaharan azides aanee panyasah vishisht carbocation abhikriyechya nivadaktet aadhalu shakate. sambandhit triphenylmethyl chloridechya dravan vishleshanatun milanare atishay sthir triphenylmethyl carbocation panyapeksha azide ions 100 putt vegane pratikriya dete. jevha carbocation heey atyant pratikriyashil trutiyak edmanten carbocation asate (dravanachya qamee jhalelya daravarun mojale jaate) tevha haah farak keval 10 chaa ghatak asato.
satatche kinwa ulat natesambandhahi titkech varanvar asatat. udaharanarth, 3-aanee 4-pratisthapit pyridinecha gut tyanchya pii. keey. aii. dware pramanit kelelya tyanchya pratikriyashilatemadhye alkylating abhikarmakanchya gatasah tyanchya pratikriyanmadhye samaan nivadakta darshavito.
aar. ess. pii. chya suruvatichya yashache kaaran mhanje prayoganmadhye gatij prasar niyantranachya jawal asalelya pratikriyashilatesaha atishay pratikriyashil madhyavarti samavisht hote aanee parinami adhik pratikriyashil madhyavarti jalad tharasah haloo pratikriya detana disale.
rasayanik pratikriyanmadhil pratikriyashilata aanee nivadakatemadhil samanya sambandh hammondchya swanishchitatedware yashasviritya spasht kele jaau shakatat.
jevha pratikriyashilata-nivad sambandh astitvat asatat tevha teey vegvegalya pratikriya paddhati darshavtat. eka abhyasat acrylonitrile, vinail actate aanee acrylamide yasarkhya sadhya alkinchya vyatirikt done vegvegalya mukt muldravyanchya prajatinchi (aaa, sulfur, buub carbon) pratikriyashilata tapasali gelee.
sulfur radicals adhik pratikriyashil asalyache aadhalun aale (6 * 108 viruddha. carbon radicalpeksha 1 * 107 mea. − 1. ess. − 1) aanee qamee nivadak (76 viruddha 1200 nivad gunottar). yaa prakaranat, silicomadhye mojalya jaau shakananya abhikarkanpasun pratikriyechya sankraman sthiteet chargechya hastantaranasathi lekhachya _ 1 ghatak sutrasah bail-evance-polany tattva vadhavun parinam spasht keela jaau shakatoh
sootra _ 2
sootra _ 3 saha sakriyakaran urja aanee sootra _ 4 saha pratikriya enthalpy badalate. electrophilic sulfur radicals, acrylonitrilesarkhya electron-samruddha alkins charge hastantaran sarvat mothe asate, parantu parinami sakriyan urjetil ghat (β nakaratmak aahe) qamee jhalelya enthalpyne bharoon kadhali jaate. dusarikade nucleophilic carbon radicals enthalpy aanee dhruviy prabhav donhichi disha samaan asate aanee tyamule sakriyatechi urja shreni vadhate.