Nowa nadtlenkowe pochodna 2-izoprepylonaftalenu i 2,6;diizopropylonaftalenu jako Inicjatory procasu utleniania kumanu

Condensation of RCMe₂OOH [I. R = 2-naphthyl, II. R = 2-(6-isopropylnaphthyl)] with RCMe₂ OH in AcOH In presence of HCIO₄ gave resp. [RCMe₂O]₂ III and IV In 80% and 78% yields, resp. (m.p. 142-144°C and 125-127°C, resp.). Similarly, the condensation oftert-BuOOH with 2,6-bis-(1-hydroxys-methyl-ethyl)naphthalene gave the resp. bisperoxide V in 84.8% yield (m.p. 91.5-93°C). Condensation of II Na salt with Ba̧CH₂)₄Br or Br (CH ₂)₁₀br In presence of Bu₄ NHSO₄ gave resp. RCMe₂OO(CH₂)_nOOMe₂CR (R = 2-(6-isopropylnaphthyl) VI, n = 4, yield 69%, m.p. 57-59°C). The analog bisperoxide VII (n - 10) was an oil and could not be sepd. In pure form. The lll-VII peroxides were used as Initiators of free radical oxldn. ofl-PrPh to PhCMe₂OOH at 100-120°C to det. reaction rate consts. The IH-Vperoxides were found less active while the VI and VII peroxides more active than dicuml peroxide widdely used as Initiator in free radical processes. Max. rares of thermal decompn. pf III-V peroxides as setd. with differential scanning calorimetry were achieved at 180.53° C, 182.81°C and 171.49°C, resp. The main decompn. products wers resp. ketones.