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Requirements of Birch reduction procedures

Origin of by-products in Birch reductions / 18 Acidity of proton donor. Effect of iron in Birch reductions / 19 Requirements of Birch reduction procedures / 22 Experimental conditions for Birch reductions / 25... [Pg.267]

A better route is the one shown in Scheme 11. The benzene complex 104 forms readily in near quantitative yield upon heating Ru(III) chloride and 1,3-or 1,4-cyclohexadiene in EtOH. The introduction of the Cp ligand is by hali-de/Mcp exchange. The classic procedure to 105 required a stoichiometric quantity of thallium or silver [103], but a very recent, improved procedure shows that cyclopentadiene/K2C03/ abs. EtOH can be used successfully [104]. Although beyond the scope of this review, it is interesting to note that the much less electrophilic complexes [(arene)Ru(C5Me5)] [PFg] are accessible in a one-pot procedure from RuClj [105]. The sequence Birch reduction/complexa-... [Pg.15]

See other pages where Requirements of Birch reduction procedures is mentioned: [Pg.22]    [Pg.20]    [Pg.22]    [Pg.20]    [Pg.25]    [Pg.284]    [Pg.106]    [Pg.117]    [Pg.189]    [Pg.25]    [Pg.68]   
See also in sourсe #XX -- [ Pg.22 ]

See also in sourсe #XX -- [ Pg.22 ]



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