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Crotyl organometallic compounds reactions with aldehydes

BF3-OEt2 reverses the usual anti selectivity observed in tbe reaction of crotyl organometallic compounds (based on Cu, Cd, Hg, Sn, Tl, Ti, Zr, and V, but not on Mg, Zn, or B) with aldehydes (eq la) and imines (eq lb), so that homoallyl alcohols and homoallylamines are formed, respectively. " The products show mainly syn diastereoselectivity. BF3-OEt2 is the only Lewis acid which produces hydroxy- rather than halo-tetrahydropyrans from the reaction of aUyl-stannanes with pyranosides. The BF3-OEt2 mediated condensations of y-oxygenated allylstannanes with aldehydes (eq Ic) and with activated imines (eq Id) affords vicinal diol derivatives and 1,2-amino alcohols, respectively, with syn diastereoselectivity. The activated imines are obtained from... [Pg.27]

See other pages where Crotyl organometallic compounds reactions with aldehydes is mentioned: [Pg.38]    [Pg.38]    [Pg.38]    [Pg.313]    [Pg.290]    [Pg.3]    [Pg.3]    [Pg.6]    [Pg.3]    [Pg.3]    [Pg.6]    [Pg.3]    [Pg.3]    [Pg.6]    [Pg.180]    [Pg.180]    [Pg.180]   
See also in sourсe #XX -- [ Pg.2 , Pg.4 , Pg.5 ]

See also in sourсe #XX -- [ Pg.4 , Pg.5 ]

See also in sourсe #XX -- [ Pg.4 , Pg.5 ]

See also in sourсe #XX -- [ Pg.2 , Pg.4 , Pg.5 ]

See also in sourсe #XX -- [ Pg.4 , Pg.5 ]



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Aldehydes compounds

Aldehydes crotylation

Aldehydes organometallics

Aldehydes reaction with organometallics

Compounds reaction with aldehydes

Crotyl

Crotylation

Organometallic compounds reaction

Organometallic compounds reactions with aldehydes

Organometallic compounds with

Reaction with organometallics

Reactions crotylation

Reactions with organometallic compounds

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