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Bascity/Polarity/Nucleophilicity/Leaving Groups
Question | Answer |
---|---|
a good leaving group is | a weak base with a strong conjugate acid |
are F and H good leaving groups | no |
rank I, Br, and Cl in terms of better leaving groups | I>Br>Cl |
are halides and sulfonate ions good leaving groups? | yes |
is DMSO polar or nonpolar? | polar |
is acetonitrile polar or nonpolar? | polar |
is DMF polar or nonpolar? | polar |
is acetone polar or nonpolar? | polar |
is dichloromethane polar or nonpolar? | moderately polar. used in electrophilic addition reaciton |
is THF polar or nonpolar | is |
is diethyl ether polar or nonpolar | nonpolar |
is toluene polar or nonpolar | nonpolar |
are I-, Br-, Cl-, strong or weak nucleophiles | strong |
is SH- a strong or weak nucloephile | strong |
is SH2 a strong or weak nucloephile | strong |
is RSH a strong or weak nucloephile | strong |
is OH- a strong or weak nucloephile | strong |
is OR- a strong or weak nucloephile | strong |
is ROO- a strong or weak nucloephile | strong |
is NC- a strong or weak nucloephile | strong |
is RCC- a strong or weak nucloephile | strong |
is F- a strong or weak nucloephile | weak |
is water a strong or weak nucloephile | weak |
is ROH a strong or weak nucloephile | weak |
is RCO2H a strong or weak nucloephile | weak |
in a polar aprotic solvent what is the strongest nucleophile? | F- |
in a polar protic solvent what is the strongest nucleophile? | I- |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. Cl-, Br-, I- | moderate nucleophile and not a base at all. |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. SH- | moderate nucleophile and not a base at all |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. RS- | moderate nucleophile and not a base at all |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. RSH | moderate nucleophile and not a base at all |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. RSH | moderate nucleophile and not a base at all. |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. acetate | moderate nucleophile and not a base at all. |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. NaH | strong base only |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. LiN | strong base only |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. LDA | strong base only |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. OH- | strong base and strong nucleophile |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. MeO- | strong base and strong nucleophile |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. EtO- | strong base and strong nucleophile |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. bulky RO- | strong base and strong nucleophile |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. H2O | weak base and weak nucleophile. |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. MeOH | weak base and weak nucleophile |
indicate if the nucleophilicity is strong or weak and indicate if the basiscity is strong or weak. EtOH | weak base and weak nucleophile |