Year 13 - Missing homework

Dear all,

I was meant to set you a homework but forgot :( This was to keep you busy over the holidays and get us ahead a little. If you see this message then the homework is to:

1.  Research and produce notes on the following reactions of carbonyls - the mechanism for nucleophilic addition reactions of aldehydes and ketones with NaBH₄ and HCN to form alcohols and hydroxynitriles respectively               

•   For NaBH₄, the nucleophile can be considered as being the hydride ion, H^–, with subsequent protonation of the organic intermediate from H₂O.
• v For HCN, initial nucleophilic attack is from CN^– ions; subsequent protonation stage can be shown using H₂O or H⁺.

1. 2      Then to complete a pack of questions on carbonyls. These you can collect from my classroom and are in the deep tray labelled 13CCh.

When I remember how to put files on here I’ll post a copy up. 

It is due first lesson in w/c 7th November.