COMPUSI HALOGENATI

Question 1

Halogenarea alcanilor

Answer 1

lumina(lumina solara, lumina unui bec puternic, lumina ultravioleta)
intuneric si temperaturi ridicate (300-600)

Question 2

Halogenarea in pozitia alilica

Answer 2

temperaturi ridicate (500-600)

Question 3

Halogenarea in pozitie benzilica

Answer 3

lumina

promotori

Question 4

Halogenarea nucleului aromatic

Answer 4

catalizatori (AlCl3, FeCl3, FeBr3), intuneric

Question 5

Tratarea fenolului cu apa de brom

Answer 5

Se obtine direct 2,4,6-tribromofenolul, sub forma unui precipitat alb, insolubil in solutie apoasa. Reactia decurge cantitativ si serveste la dozarea fenolului.

Question 6

Aditia halogenilor la alchene

Answer 6

solutie de Cl2 sau Br2 in solventi nepolari (CCl4, CH2Cl2)

Question 7

Aditia halogenilor la alchine

Answer 7

solutie de Cl2 sau Br2 in solventi nepolari (CCl4)

Question 8

Aditia halogenilor la diene cu duble legaturi conjugate

Answer 8

solutie de Cl2 sau Br2 in solventi nepolari (CCl4)

Question 9

Aditia halogenilor la benzen

Answer 9

lumina

promotori

Question 10

Aditia hidracizilor la alchene

Answer 10

solvent (CCl4, CH2Cl2)

Question 11

Aditia hidracizilor la alchine

Answer 11

pentru HCl catalizatori (HgCl2)

Question 12

Aditia bromului la alchene

Answer 12

este imediata si cantitativa, de aceea, decolorarea unei solutii brun-roscate de brom in tetraclorura de carbon serveste la recunoasterea si la dozarea alchenelor

Question 13

Aditie anti-Markovnikov

Answer 13

peroxizi organici, la intuneric si la cald sau la lumina si la rece, alchenele cu dubla legatura marginala + HBr p