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2004
Rearrangements
O 0140
Double- and Triple-Consecutive O-Insertion into tert-Butyl and Triarylmethyl
— Triarylmethyl (I) as well as diphenylalkoxy (III) and diphenylphenoxy
45- 042 Structures.
(VI) compounds undergo the consecutive Criegee rearrangement under conditions A)
of with formation of the triple-O-insertion products. Only a double-O-insertion reaction
is occurring with tert-butyl trifluoroacetate under similar conditions. The latter reaction
is only observed spectroscopically. — (KRASUTSKY*, P. A.; KOLOMITSYN, I. V.;
KRASUTSKY, S. G.; KIPROF, P.; Org. Lett. 6 (2004) 15, 2539-2542; Nat. Resour.
Res. Inst., Univ. Minn., Duluth, MN 55811, USA; Eng.) — Steudel
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