Codsiyada Sodium Cyanide ee Warshadaha Dawooyinka

Sodium cyanide , oo leh qaacidada kiimikada ee NaCN, waa isku-dhis cad, biyo-milmi kara, oo aad u sun badan. Iyadoo ay sumcad xun ku leedahay sunteeda awgeed, waxay door muhiim ah ka ciyaartaa Warshadaha Daawooyinka iyadoo ah fal-gal kiimiko oo muhiim ah oo ku jira habab kala duwan oo isku-dhafan.

1. Isku-dhafka Dhexdhexaadiyeyaasha

1.1 Cyanohydrin Synthesis

Mid ka mid ah codsiyada muhiimka ah ee Sodium Cyanide ee isku-darka dawooyinka waa sameynta cyanohydrins. Marka aldehyde ama ketone ay la falgasho sodium cyanide iyadoo ay joogaan kiciye aashito (badanaa aashito daciif ah), waxaa la soo saaraa cyanohydrin. Habka falgalka wuxuu ku lug leeyahay ku darista nucleophilic ee cyanide ion (CN-) ee kaarboonka Carbon yl ee aldehyde ama ketone. Tusaale ahaan, isku-darka mandelonitrile, benzaldehyde wuxuu la falgalaa Sodium cyanide . Falgalkan waxaa lagu matalaa sida soo socota:

Mandelonitrile iyo cyanohydrins kale waa dhexdhexaadiye muhiim ah oo ka mid ah soo saarista dawooyinka kala duwan. Waxa kale oo loo beddeli karaa xeryahooda leh hawlo bayooloji oo kala duwan, sida alfa - hydroxy acids iyo alfa - amino acids, kuwaas oo ah qaybo ka mid ah dawooyin badan.

1.2 Nitrile Synthesis

Sodium cyanide sidoo kale si weyn ayaa loo isticmaalaa si loo soo saaro nitriles. SN2 (beddelka nucleophilic bimolecular) falcelinta, alkyl halides waxay la falgalaan sodium cyanide si ay u sameeyaan nitriles. Tusaale ahaan, marka bromoethane ay la falgasho sodium cyanide, propionitrile ayaa la sameeyaa:

Nitriles waa dhismayaal kala duwan oo ka samaysan kimisteriga dawooyinka. Waxaa lagu shubi karaa asiidh-carbosilic ah, lagu dhimi karaa amines, ama si dheeraad ah ayaa looga falcelin karaa si ay u sameeyaan xeryahooda heterocyclic. Daawooyin badan ayaa ka kooban kooxo shaqaynaya nitrile, kuwaas oo gacan ka geysta sifooyinkooda farmaajo, sida qaar ka mid ah wakiilada antifungal iyo bakteeriyada.

2. Soo saarista Daawooyinka Gaarka ah

2.1 Cyanocobalamin (Vitamin B12) Synthesis

Cyanocobalamin, oo loo yaqaan vitamin B12. waa fitamiin lagama maarmaan u ah caafimaadka aadanaha. Isku-darka cyanocobalamin waxay ku lug leedahay isticmaalka sodium cyanide. Talaabada ugu dambeysa ee qaar ka mid ah waddooyinka synthetic, cobalt - ka kooban dhexdhexaad ah ayaa lagu falceliyaa sodium cyanide si loo soo bandhigo kooxda cyanide, taas oo ah dabeecadda cyanocobalamin. Kooxda cyanide ee ku jirta cyanocobalamin aad ayay u deggan tahay xaaladaha jireed waxayna door ka ciyaaraan waxqabadka bayooloji ee fitamiinka. Faytamiin B12 ayaa muhiim u ah isku-dhafka DNA-da, shaqada dareemayaasha, iyo soo saarista unugyada dhiigga cas, iyo wax-soo-saarkeeda synthetic iyadoo la adeegsanayo sodium cyanide waxay caawisaa buuxinta baahida loo qabo kaabista cuntada iyo qaababka dawooyinka.

2.2 Isku-dubarid Qaar ka mid ah Dawooyinka Ka-hortagga Kansarka

Horumarinta daawooyinka kansarka qaarkood, sodium cyanide waxaa loo isticmaalaa isku-dhafka dhexdhexaadiyeyaasha muhiimka ah. Tusaale ahaan, marka la isku daro qaar ka mid ah indole-ku salaysan ka-hortagga kansarka xeryahooda, sodium cyanide waxaa loo isticmaalaa falcelin taxane ah si loo dhiso qaabka molecular. Kooxaha nitrile-ka ee ay soo bandhigtay sodium cyanide waa la sii bedeli karaa si kor loogu qaado xiriirka daroogada ee unugyada kansarka, la joojiyo enzymes gaar ah oo ku lug leh koritaanka unugyada kansarka, ama carqaladeeyaan waddooyinka dheef-shiid kiimikaadka unugyada kansarka.

3. Caqabadaha iyo taxaddarrada isticmaalka Sodium Cyanide

Isticmaalka sodium cyanide ee warshadaha dawooyinka waxay la timaaddaa caqabado waaweyn sababtoo ah sunta xad dhaafka ah. Tallaabooyin badbaado adag ayaa looga baahan yahay maaraynteeda, kaydinteeda, iyo isticmaalkeeda. Qalab gaar ah iyo shaqaale tababaran ayaa lama huraan u ah si looga hortago wax daadsan ama soo-gaadhis kasta. Habka wax-soo-saarka, habab hawo-siineed oo habboon ayaa lagu rakibay si looga fogaado in la neefsado wax kasta oo cyanide ah - qiiqa ku jira. Intaa waxaa dheer, maareynta qashinka ayaa ah arrin muhiim ah. Qashin kasta oo ay ku jirto sodium cyanide ama alaabteeda falcelinta waa in si taxadar leh loo daweeyaa si loo xaqiijiyo badbaadada deegaanka. Caadi ahaan, hababka oksaydheynta ayaa la adeegsadaa si loogu beddelo isku-dhisyada cyanide-ka sunta ah ee aadka u sunta ah oo loo beddelo walxo waxyeello yar ka hor intaan la tuurin.

4. Xogta mustaqbalka

Maaddaama warshadaha dawooyinku ay sii kobcayaan, raadinta hababka wax-ku-oolka ah ee waxtarka badan iyo badbaadada leh ayaa socda. Iyadoo sodium cyanide ay weli tahay reagent muhiim u ah isku-darka dawooyinka hadda jira, waxaa la sameynayaa dadaallo lagu horumarinayo wadooyin kale oo hoos u dhigaya ama baabi'inaya isticmaalka xaruntan sunta ah. Si kastaba ha noqotee, mustaqbalka dhow, sababtoo ah fal-celinta gaarka ah ee sodium cyanide ee waddooyinka synthetic qaarkood, waxay u badan tahay inay sii wadi doonto doorka wax soo saarka daawooyinka qaarkood. Cilmi-baadhistu waxay diiradda saari kartaa horumarinta xaaladaha falcelinta la xakameeyey si loo yareeyo khataraha la xidhiidha isticmaalkeeda iyo sidii loo heli lahaa isku-dheelitirnaan badbaado leh ama xeelado kale oo isku-dhafan oo lagu gaari karo isla alaabada dawooyinka ee leh walaaca sunta oo yaraada.

Gabagabadii, sodium cyanide, inkasta oo ay suntu tahay, ayaa wax weyn ku soo kordhisay warshadaha dawooyinka ee isku-dhafka dawooyinka muhiimka ah ee kala duwan iyo dhexdhexaadiyeyaasha. Isticmaalkeeda saxda ah ee badbaadada leh, oo ay weheliso dadaallada joogtada ah ee lagu raadinayo beddelaad kale, ayaa muhiim u ah horumarka waara ee soo saarista dawooyinka.