The ortho-Claisen Rearrangement. II. The ... - ACS Publications

(27) It should be noted, however, that Marvel and Stephenson4 have observed ..... metric quantity of hydrogen at atmospheric pressure and room tempera...
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1968

WILLIAMN. WHITEAND BRUCEE. NORCROSS

Vol. 83

broken. Were this the case, cis-y-methylallyl phenyl ether might be expected to undergo partial conversion to its trans isomer during Claisen rearrangement. This does not happen.27 It is probable that in the ortho rearrangement the conversion of dienone to phenolic product is rapid as compared to the conversion of ether to dienone (eq. 2 )

- hH -

qH2CH=VHR

.I