3016-19-1Relevant articles and documents
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Dupont,Dulou,Defay
, p. 310,312 (1949)
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Kinetic and mechanistic study on the thermal isomerization of ocimene in the liquid phase
He, Jindong,Xie, Meng,Tang, Xiangyang,Qi, Xin
scheme or table, p. 373 - 378 (2012/07/30)
The rate of thermal isomerization of ocimene in the liquid phase has been investigated in the range 90-150°C. The rate constant for the disappearance of ocimene may be expressed by k=1.3×1010e -11994.2/T(min-1), from which we can infer that the activation energy is 99.7kJmol-1 and the pre-exponential factor is 1.3×1010min-1. The half-life for the disappearance of ocimene may be expressed by t1/2=5.2×10-11e 11994.2/T(min). The conclusion has been supported by the study results that the ocimene is safe when temperature is below 100°C. A discussion of the mechanism concerning the conversion is included. Copyright
Amberlyst-15-catalyzed efficient cyclization of γ-and δ-unsaturated alcohols: Green synthesis of oxygen heterocycles
Singh, Soni A.,Kabiraj, Shilpi,Khandare, Reena P.,Nalawade, Shrikant P.,Upar, Kiran B.,Bhat, Sujata V.
experimental part, p. 74 - 80 (2010/03/24)
Amberlyst-15 (H+) resin catalyzes efficient cationic endo-cyclization of-and-unsaturated alcohols to yield tetrahydro-(2H)-pyrans and oxepanes. The merits of the present protocol are good yield of the products under mild conditions, simple workup, and reusability of the resin.