a) Is the ylide N (phosphorane) shown above a stabilized or non-stabilized ylide? Explain your answer. (2 marks)

n

b) Redraw the structures below in your answer book and use them to draw Newman projections to show the likely approach of the ylide N to the aldehyde M. Ensure that you label any steric clashes or dipole moments that are of consequence and highlight which of the 2 approaches is favoured. (7 marks)

Transcribed Image Text:

Ph;P OEt OEt (0) (M) (N) Ph;P OEt OEt (0) (M) (N)

Answer rating: 100% (QA)

a Ylids are divided into two types those with conjugation or anionstabilizing substituents adjacent ... View the full answer