Results 271 to 280 of about 12,106 (297)
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Organic Letters, 2011
A convergent and effective synthesis of the pyrrolopyrrole substructure (CDEFG) of the isoquinocyclines is reported. A key step is a tin-lithium exchange of an imidato-alkenyltin compound (a ring G equivalent) and the subsequent acylation with a lactone. The resulting acetal is used successfully for the ring F closure to the pyrrolopyrrole.
M André, Breuning +2 more
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A convergent and effective synthesis of the pyrrolopyrrole substructure (CDEFG) of the isoquinocyclines is reported. A key step is a tin-lithium exchange of an imidato-alkenyltin compound (a ring G equivalent) and the subsequent acylation with a lactone. The resulting acetal is used successfully for the ring F closure to the pyrrolopyrrole.
M André, Breuning +2 more
openaire +2 more sources
, 2022 Inclusion principle for the Rayleigh-Ritz based substructure synthesis
AIAA Journal, 1991According to this substructure synthesis, the motion of every substructure is modeled in terms of quasicomparison functions, which are linear combinations of admissible functions capable of satisfying all the boundary conditions.
LEONARD MEIROVITCH, MOON KWAK
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Application of Optimization Procedures to Substructure Synthesis
1991Substructure Techniques are applied to the modelling of elasto-mechanical systems. The aim is the generation of simple mathematical models for the dynamic analysis of the complex system. This paper shows how complex systems can be modelled by means of simple lumped-mass-substructures.
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Optimal structural control by substructure synthesis
AIAA Journal, 2000M. Sunar, S. S. Rao
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Dynamic analysis of frames by a Rayleigh–Ritz based substructure synthesis method
Engineering Structures, 2000Cesar A Morales
exaly
Comment on the substructure synthesis methods
Journal of Sound and Vibration, 1984openaire +1 more source