Nonadditive effects of structural factors in reactions of aryloxiranes with arenesulfonic acids. Observation of isoparametricity phenomenon
摘要:
In reactions of aryloxiranes XC6H4(3)CH(O)CH2 with arenesulfonic acids YC6H4SO3H in a mixture of dioxane with diglyme (1: 1) at 265 K the nonadditive effects of substituents X and Y were strongly revealed, therefore it was possible to observe experimentally the isoparametricity phenomenon: In the isoparametric point sigma(X) (IP) = 1.42 with respect to the X substituent constant the rate of the oxirane ring opening did not depend on the structure of Y (rho(Y) (X) = 0).
Structure-Activity Relationship in a Series of Adrenergic β-Blocking Agents Related to 1-(4-Nitrophenyl)-1-hydroxy-2-isopropylaminoethane (INPEA)<sup>1</sup>
作者:P. Somani、Romeo T. Bachand、W. Murmann、L. Almirante
DOI:10.1021/jm00324a006
日期:1966.11
Synthesis of Chiral Bitetralin-strapped “Twin Coronet” Porphyrins. Catalytic and Asymmetric Epoxidation of Styrene Derivatives
“Twin-coronet” porphyrins bearing optically active 1,1′-bitetrahydronaphthalene derivatives on the both faces of the porphyrin were prepared as enantioselective oxidation catalysts modeling on cytochrome P-450s. The eclipsed isomer of the corresponding iron(III) porphyrins catalyzed epoxidation of styrenes substituted with electron-withdrawing groups in high e.e. (61–89%) and high product selectivity
在卟啉的两个面上带有光学活性 1,1'-双四氢萘衍生物的“双冠”卟啉被制备为模拟细胞色素 P-450 的对映选择性氧化催化剂。相应的铁 (III) 卟啉的失色异构体在高 ee (61–89%) 和高产物选择性下催化被吸电子基团取代的苯乙烯的环氧化。
Nonadditive effects of structural factors in reactions of aryloxiranes with arenesulfonic acids. Observation of isoparametricity phenomenon
作者:I. V. Shpan’ko、I. V. Sadovaya、N. V. Kulikova
DOI:10.1134/s107042801105006x
日期:2011.5
In reactions of aryloxiranes XC6H4(3)CH(O)CH2 with arenesulfonic acids YC6H4SO3H in a mixture of dioxane with diglyme (1: 1) at 265 K the nonadditive effects of substituents X and Y were strongly revealed, therefore it was possible to observe experimentally the isoparametricity phenomenon: In the isoparametric point sigma(X) (IP) = 1.42 with respect to the X substituent constant the rate of the oxirane ring opening did not depend on the structure of Y (rho(Y) (X) = 0).