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Bis dioxolane

Dioxolan 4,5-Bis-[methoxyme-thyl]-2-(l-hydroxy-ethyl)- E21b, 1255 [(RO)2CH —CHO +... [Pg.678]

Butandisaure 2-Hydroxy-2-methyl- -4-tert.-butylester-l-ethylester E21b, 1809 (Ar—SO —CH2 — COOR/R—MgX + H3C-CO-COOR Al-Hg) 1,3-Dioxolan 4,5-Bis-[methoxyme-thyl]-2-(l -hydroxy-1 -methyl-allyl)- E2lb, 1255 [(RO)2CH-CO-CH3 + H2C=CH —MgBr] Oxetane 3.3-Diethoxy-2-ethoxycar-bonyl-2-methyl- E21c, 3138 [H3C-CO-COOR +... [Pg.938]

Mejorado investigated the asymmetric addition of various organometallic nucleophiles using method A, but the reaction could not be catalyzed. The intermediates proved to be far too reactive. However, he established that the addition of a stoichiometric amount of a preformed chiral complex [an admixture of Taddol (r/om-a, -(dimethyl-1,3-dioxolane-4,5-diyl)bis(diphenyl methanol)) and EtMgBr] to 5 affords some enantiomeric excess in the resulting phenol product 6 (Fig. 4.12).13... [Pg.95]

DIOXOLANE-4,5-DICARBOXYLIC ACID, 2,2-DIMETHYL-, BIS(l-METHYLETHYL) ESTER, (4R-TRANS)-, 65, 230... [Pg.123]

DIISOPROPYL (2S,3S)-2,3-0-IS0PR0PYLIDENETARTRATE (1,3-Dioxolane-4,5-dicarboxylic acid, 2,2-dimethyl-, bis(l-methylethylJester, (4R-trans)-J... [Pg.116]

Related Reagents. (/ )- ,l -Bi-2,2 -naphthotitanium Dichloride (/ )- ,T-Bi-2,2 -naphthotitanium Diisopropoxide Dihydroquinine Acetate (15,9.S)-l,9-Bis [(r-butyl)dimethylsilyloxy]-methyl -5-cyanosemicorr in 2,2-Dimethyl-a,a,a, a -tetraphenyl-1,3-dioxolane-4,5-dimethanolatotitanium Diiso-... [Pg.273]

Related Reagents. B-Allyldiisopinocampheylborane Chlo-ro(T -cyclopentadienyl)[(4/ ,fra 5)-2, 2-dimethyl-a,a,a, a -tetraphenyl-1, 3-dioxolane-4,5-dimethanolato(2—)-0 , 0 ]ti-tanium Chloro(cyclopentadienyl)bis[3-0-(l, 2 5,6-di-0-isopro-pylidene-a- D-glucofuranosyl)]titanium Diisopinocampheyl-boron Trifluoromethanesulfonate Diisopropyl 2-Allyl-l,3,2-di-oxaborolane-4,5-dicarboxylate (4/ ,5/ )-2,2-Dimethyl-4,5-bis-(hydroxydiphenylmethyl)-1,3-dioxolane 2,2-Dimethyl-a,a,a, a - tetraphenyl-l,3-dioxolane-4, 5-dimethanolatotitanium Diiso-propoxide. [Pg.302]

DIOP [(2,2-dimethyl-1,3-dioxolan-4,5-diyl)bis-(methylene)]bis(diphenyl-... [Pg.404]

See other pages where Bis dioxolane is mentioned: [Pg.609]    [Pg.609]    [Pg.400]    [Pg.609]    [Pg.609]    [Pg.609]    [Pg.609]    [Pg.400]    [Pg.609]    [Pg.609]    [Pg.467]    [Pg.180]    [Pg.133]    [Pg.142]    [Pg.662]    [Pg.268]    [Pg.184]    [Pg.103]    [Pg.103]    [Pg.449]    [Pg.523]    [Pg.535]    [Pg.548]    [Pg.548]    [Pg.568]    [Pg.6]   
See also in sourсe #XX -- [ Pg.16 , Pg.17 , Pg.93 , Pg.94 , Pg.95 , Pg.140 , Pg.145 ]



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1.3- DIOXOLANE-4,5-DICARBOXYLIC ACID, 2,2-DIMETHYL-, BIS

Bis ethylene glycol 1.3- dioxolane formation

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