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Agent Oriented Methodologies have become an important subject of research in advanced Software Engineering. Several method-ologies have been proposed, as a theoretical approach, to facilitate and support the development of complex distributed systems. An important question when facing the construction of Agent Applications is deciding which methodology to(More)
The chemistry of cinnamic acids and related compounds has been studied. In superacid-catalyzed reactions with arenes, two competing reaction mechanisms are proposed. Both mechanisms involve the formation of dicationic intermediates (superelectrophiles), and the reactions can lead to either chalcone-type products or indanone products. The direct observation(More)
  • A Gómez
  • 1998
In this work the physical optics approach (Fourier Optics) that has been so successful in formulating the (multislice) high energy theory of electron diffraction is used to formulate the kinematical theory of electron diffraction. The resulting expressions already have the required phase factors and Ewald's sphere built in. A simple link to the weak phase(More)
The development of applications distributed partly on handheld devices is becoming more and more important. This paper shows the use of mobile agents technology in the development of a distributed system, called SAIPE. It makes easier the reading of user e-mail from different accounts and the searching of documents in Internet with a PDA. SAIPE has been(More)
This paper describes the superacid-catalyzed chemistry of olefinic amines and related compounds. A variety of olefinic amines are found to react with benzene in CF(3)SO(3)H (triflic acid) to give addition products in good yields (75-99%), including the pharmaceutical agents fenpiprane and prozapine. A general mechanism is proposed that invokes the formation(More)
A variety of aminoalkynes and related heterocycles are reacted in the Bronsted superacid CF(3)SO(3)H (triflic acid), and products are obtained in generally good yields (69-99%) from Friedel-Crafts-type reactions. The reactions are consistent with the formation of novel dicationic intermediates having a vinyl cationic site and an adjacent protonated(More)
In the Brønsted superacid CF(3)SO(3)H (triflic acid), amides are able to form reactive, dicationic electrophiles. It is shown that these dicationic intermediates participate in two distinctly different types of electrophilic reactions. The protonated amide increases the reactivity of an adjacent electrophilic group, and the protonated amide group itself(More)
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