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The concept of photoinduced electron transfer has been explored for the development of polymeric transducers for optical ion-detection devices. For this purpose, a series of N-(9-anthrylmethyl)monoaza-18-crown-6 substituted poly(methacrylate)s were prepare ...
A review, with 91 refs., of stereoselectivity in reactions of stable and reactive ylids, and the application of stereoselective carbonyl olefinations. [on SciFinder (R)] ...
A review, with 6 refs., of the prepn. of olefins from phosphonium ylides and carbonyl compds. and from phosphonium ylides, carbonyl compds., org. Li compds., and reactive halogen compds., such as MeCOCH2Cl and EtI. [on SciFinder (R)] ...
Homogeneous stereoisomeric olefins of the general formula I (R1 and R2 = alkyl, R3 = H and(or) alkyl) were prepd. by reacting a phosphorus ylide (general formula Ar3P+:C-HR) and a carbonyl compd. R2COR3 with stoichiometric amt. of a strong base, followed b ...
An approximation to an implicit infiltration formula presented earlier in this series is developed. At worst, the relative error of the approximation is always less than 1%, and it is much better than that for most cases. The approximation becomes more acc ...
A compound, in metal-free or metal complex form of formula (1) to (3) in which R is hydrogen or C1-30 alkyl; X is hydrogen, halogen (preferably Cl or Br) or C1-30 alkyl. ...
(Ecole Polytechnique Federale de Lausanne (epfl), Switz.).1995
Comparison of results obtained from 1,1′- and 1,3-disubstituted ferrocenes clearly demonstrates the influence of structural isomerism on the mesomorphic properties. ...