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Search results for: claisen rearrangement
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... synthesis of that beast begins with a Johnson-Claisen ortho-ester rearrangement, used again a few ... /anie.200603853 Another appearance for the Nazarov rearrangement in this smart total synthesis of Fusicoauritone ...
... . The cascade reaction incorporated two consecutive Claisen rearrangements , collapsing of the Boc groups ... a formal [2 + 2] cycloaddition. Further chemoselective protection of 2 with ...
... , Santa Barbara, was the diastereoselective Claisen rearrangement of 1 to 2. The ... portion of ester 1 was derived from the aldehyde 4, prepared from D-ribose. ...
... by Eu(III) -catalyzed Claisen rearrangement where glycosides 4 undergo a [ ... ,3 ] -sigmatropic rearrangement and furnish the novel phenol derivatives 5. Synthesis ...
... DIOXADIAZINES/DITHIADIAZINES/OXATRIAZINES/THIATRIAZINES Claisen Rearrangements in Heteroaromatic Systems. C. ... . Moody, Adv. Heterocycl. Chem., 1987, 42, 203 ...
... began with the triene alcohol 4. Claisen rearrangement with 5 followed by the addition ... the ester enolate derived from 6 led to the ?-keto ester 7. Oxidative cyclization ...
... added to 6 to give 7. Claisen rearrangement followed by Rosenkamp homologation led to ... ] skeleton of 3 by the reductive rearrangement to 2 of the more readily prepared ...
... one of my favourite reactions, a Johnson-Claisen rearrangement . This uses triethyl ortho acetate ... add two carbons to the allylic alcohol, and then does the [3 , ...
... silane. The key reaction is a Claisen rearrangement to take an enantiomerically pure allyic ... and rearrange into an allyl silane, generating a further stereocenter in the process. ...
... Materia Medica achieved substantial diastereoselectivity in the Claisen rearrangement of 7. On deprotection the ... of Toyama observed high diastereoselectivity in the rearrangement of the diazo ketone 1 to the ...
