Propose a curved-arrow mechanism for each of the re-actions given in Fig. P17.38. (a) (b) (c) H

Propose a curved-arrow mechanism for each of the re-actions given in Fig. P17.38.
(a)

(b)

(c)

Transcribed Image Text:

H ,C) ether CH:(CH2)3 CH C CH2 CH3(CH2sC C CH 1-penten-4-yne + Na+ー:C CH; then allyl bromide- H,C-CH-CH-C -CH CH-CH-CH, CHo C,H,O CH CH, +G,H,OH-(dilute)→ CH, OH (excess: OC2Hs solvent)