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haloalkanes and haloarenes
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- 1classifications of halidesalkyl - R-x
allyl - X - C - C = C
benzyl - X - C -Ar
aryl - X - Ar ( c = c place )
vinyl - X - c = c - 2nature of c-x bond* x is more electronegative than carbon
* size of atom and bond length increases from F - I
* BL is inversely to bond enthalpy
*dipole moment decreases from F - I - 3MOP of haloalkanes1. from alcohols
2. from hydrocarbons
3. from alkenes - 4from alcohols
- 5from hydrocarbons - from alkanes free radical halogenationCH3 - CH2 - CH2 -CH3 + Cl2 / UV Light or heat -----> CH3 - CH2 - CH2 - CH2 - Cl
+
CH3 - CH2 - CH (Cl ) - CH3 - 6from alkenes 1 ) Addition of hydrogen halide> C = C < + HX ----> >C H - X C <
- 7from alkenes 2 ) addition of halogenCH2 = CH2 + Br2 ----CCl4 ---> BrCH2-CH2Br
- 8from hydrocarbons FINKELSTEIN REACTION
- 9from hydrocarbons SWARTS REACTION
- 10MOP of haloarenes1. from hydrocarbons by electrophilic substitution
2 . from amines - 11from hydrocarbons by electrophilic substitutionO and p can seperated due to difference in mp
fluoro compound is not created due to high reactivity of fluorine
- 12from amines SANDMEYER'S REACTIONIodine does not require presence or cuprous halide, it'S simply formed by shaking with diazonium salt with KI
- 13WURTZ REACTION2RX + 2Na ----> RR + 2NaX
- 14HALOGENATION
- 15NITRATION
- 16SULPHONATION
- 17FRIEDEL-CRAFTS REACTION
- 18WURTZ FITTIG REACTION
- 19FITTIG REACTION
- 20DDT
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- monika sri · feb 2024
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- 24 feb 2024
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