Transformation of myrtenoic acid nitrile to aminophospholene oxide by the reaction with dibenzylphosphine oxide: the X-ray structure of (1S*,2R*,6R*,8R*)-5-benzyl-9,9-dimethyl-5-oxo-4-phenyl- 5-phosphatricyclo[6.1.1.02,6]dec-3-en-3-ylamine

The reaction of dibenzylphosphine oxide with myrtenoic acid nitrile in tert-butyl methyl ether in the presence of sodium hydride results in the formation of substituted aminophospholene oxide in good yield (83%).