A penta-2,4-dienylphosphine oxide is easily obtained by reaction of methylmagnesium iodide with 1-oxa-2-phosphacyclo-hepta-4,6-diene followed by two more intermediate steps. The corresponding phosphine may be obtained either by trichlorosilane reduction of the oxide or nickelocene reduction–...
It provides a new look on the temporo mandibular joint growth.%L'étude des déformations crâniennes intentionnelles met en évidence les relations crâne-face. Le remodelage de la voûte crânienne est issu des modifications du processus ontogénique de flexion basicrânienne. Cela ...