Question

I don't know what those signals indicate on the MS spectrum and I don't know the mechanism for the reaction. 

c. lithium dicyclohexylcuprate (I)
6. In the MS spectrum of the product of this experiments (benzaldehyde + allylzinc bromide)
identify the fragments at m/e 148, 130, 107.
7. The reaction of allyllithium with the aldehyde shown gives the indicated product. Show how the
observed product was formed (mechanism).
CO2CH3
1. Allyllithium
2. Η' , H,ο
CHO

Image Transcription

c. lithium dicyclohexylcuprate (I) 6. In the MS spectrum of the product of this experiments (benzaldehyde + allylzinc bromide) identify the fragments at m/e 148, 130, 107. 7. The reaction of allyllithium with the aldehyde shown gives the indicated product. Show how the observed product was formed (mechanism). CO2CH3 1. Allyllithium 2. Η' , H,ο CHO

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