Using Lithium-or Sodium-Magnesium Mixed-Metal Bases

1 Using Lithium- or Sodium-Magnesium Mixed-Metal Bases 

SCHEME 27.18 5 Bromo l,3-xylylene-15-crown-4 deprotometalation using a diarylmagnesium. 

SCHEME 27.19 l,3-Bis(trifluoromethyl)benzene deprotometalation using a lithium-magnesium base and subsequent electrophilic trapping. 

TABLE 27.3 Substituted Braizenes Deprotometalalioii Using a Lithium-Ma esium Base and Subsequent Interception with Differmt Electrophiles 

TABLE ns Substituted Benzenes and Na[ditbalenes Deprotometalation Using a Lithium—Magnesium Base and Subsequent Interception with Difl rait Electrophiles 

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