Sanofi

Beijingwest Industries Co., Ltd.

Frederic Bailly

Thomas W Nehl

Robert Thomas Foister

Philippe Vayron

Xavier Bon

Guy Tessier

Thomas Wolfgang Nehl

A magneto-rheological damping assembly including a piston () defining a core (). A pair of spaced electromagnets () are disposed about the core () and are connected to a controller () for selectively generating a magnetic flux. A pair of permanent magnets () are disposed about the electromagnets () and a pole segment () is disposed therebetween. A main gap () extends through the piston () through which magneto-rheological fluid () is conveyed. Flux generated by the magnets controls the viscosity of the fluid in the main gap () to control the damping force of the assembly. The controller () defines an off operating state for cancelling the flux from the permanent magnets () across the main gap (). The core () and the pole segment () define a closed auxiliary gap () extending axially between the electromagnets () and radially between the core () and the internal pole segment () for preventing leakage of flux across the main gap () when the assembly is in the off operating state.

Magneto-rheological damping assembly

The disclosure relates to a process for preparing benzofuran derivatives of general formula I: in which R, R, and Rare as defined in the disclosure; by coupling the hydroxylamine with a diketone of general formula III: in order to form an oxime that is then cyclized by heating in order to form the desired compound.

Process for preparing benzofuran derivatives substituted at position 5

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Paris, France

Frederic Bailly