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Search results for: wittig rearrangement
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... and oxidized to the ketone 13. Wittig olefination gave a pair of geometric isomers ... of 8 underwent smooth oxy- Cope rearrangement , to give an enolate that was ...
... an aqueous phase transfer procedure for the Wittig condensation of 25 with 26 to give ... , 15, 1428. ) thermal rearrangement of 23 to 24. Matjaz Krajnc ...
... could be used directly in a subsequent Wittig reaction . Dominique Agustin of the Université ... , 5444. ) a catalyst that rearranged 14 to the protected amino alcohol 15 ...
... Key Words: HINDERED ORGANOBORON GROUPS/BORON-WITTIG REACTION/DIMESITYLBORON STABILIZED CARBANIONS/DIMETALLIC ... REAGENTS/ALLYLIC ORGANOBISMETALLIC REAGENTS/METALLA-CLAISEN REARRANGEMENT/LITHIUM-TITANIUM EXCHANGE/CROSS-COUPLING REACTION I ...
... ) -citronellal (4 ) . Wittig homologation established the (Z ) - ... installed the ring-contracted alkene with a Ramberg-Bäcklund rearrangement . They completed the synthesis of (+ ...
... . The aldehyde 2 was assembled by Wittig homologation of the aldehyde 5 with the ... 2 to give, via Lewis acid-mediated rearrangement of the initially-prepared acetal, the aldehyde ...
... SYNTHESIS/PODAND IONOPHORES/VITAMIN-D Georg Wittig and his accomplishments: Still relevant beyond ... [2 ,3 ] -Sigmatropic Rearrangements. R. W. Hoffmann, ...
... 5854. ) conditions for the catalytic Wittig reaction of 14 with 15, with ... give 9, the product of Claisen rearrangement . Tsuyoshi Satoh of the Tokyo University ...
