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مد مايكرو دزينب_230416_215204.pdf
600.3 KB
اسئلة المد
مايكرو /صيدلة /مرحلة ثانية
كلية الرشيد الجامعة
مايكرو /صيدلة /مرحلة ثانية
كلية الرشيد الجامعة
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Colloid 1.pdf
328.6 KB
8+9+10
Aromaticity
(وهي عكس Electronegativity)
Benzene > Pyridine > Thiophen > Pyrrole > Furan
Electronegativity
Furan > Pyrrole > Thiophen > Pyridine > Benzene
Reactivity toward :-
Electrophilic substitution /
Pyrrole > Furan > Thiophene > Benzene > Pyridine
Nucleophilic substitution /
Pyridine > Benzene
Basicity :
Piperidine > Pyrrolidine > Imidazole > Pyridine > Pyrrole > furan > thiophene > Benzene
Boiling point :
Pyrrole > Pyridine > Piperidine > Pyrrolidine > Thiophen > Benzene > Furan
(وهي عكس Electronegativity)
Benzene > Pyridine > Thiophen > Pyrrole > Furan
Electronegativity
Furan > Pyrrole > Thiophen > Pyridine > Benzene
Reactivity toward :-
Electrophilic substitution /
Pyrrole > Furan > Thiophene > Benzene > Pyridine
Nucleophilic substitution /
Pyridine > Benzene
Basicity :
Piperidine > Pyrrolidine > Imidazole > Pyridine > Pyrrole > furan > thiophene > Benzene
Boiling point :
Pyrrole > Pyridine > Piperidine > Pyrrolidine > Thiophen > Benzene > Furan
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Piperidine Kb = 2 * 10¯³
pyrrolidine Kb = 10¯³
aliphatic amines Kb = 10¯⁴
Pyridine Kb = 2.3 × 10¯⁹
Pyrrole kb = 2.5 × 10¯¹⁴
pyrrolidine Kb = 10¯³
aliphatic amines Kb = 10¯⁴
Pyridine Kb = 2.3 × 10¯⁹
Pyrrole kb = 2.5 × 10¯¹⁴
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