Hccchch

35-91%; prisms(from w or benz), mp 104-5°; expl in flame but not by friction; was prepd by treating anhyd tetramethyl-l,4-butanediol with75% hydrogen peroxide(Ref 2,p 141)

Its Acetone Compound(cal\ed 3,3,6,6,9,9-Hexa-methyl-1,2,4,5-tetroxonane in CA 5th Decennial

Formula Index),(CH3)2C-CH2-CH2-C(CH3)2;

00-C(CH3)2-00 mw 218.29, O 29-32%; crysts(from methanol), mp 42-3°; expl at higher temp; was obtd by allowing a mixt of 2,5-bis(hydroperoxide)-2,5-dimethyl-hexane, anhyd acetone and anhyd Cu sulfate to stand for 14 days(Ref 3,p 18)

Benzolation of 2,5-bis(hydroperoxy-2,5-dimethyl) -hexane yielded the Dibenzoate, C22H26Og, fine pltlts(from MeOH), mp 117°, exploding when heated in a flame. Also, there was prepd the Di-p -nitrobenzoate, C22H24N2O10, It yel Ifts, mp 150°, exploding on heating in a flame(Ref 2) Refs: l)Beil- not found 2)R.Criegee & H.Dietrich, Ann 560,141(1948) & CA 43,6190(1949) 3)R. Criegee et al,Ann 565,18(1949) & CA 44,1917 (1950)

9,9'»B i s(hydroperoxy)*fl uorene+2 Fl uorenones (Adduct) (formerly misnamed "Fluorenon-oxoxyd" in Ger) (listed as "Fluorenone Compound with 9 •Fluorenylidenedihydroperoxide" in CA Formula Index for 1950), OO.H

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