1. Who received the Noble Prize for the discovery of the Wittig
reaction?
2. The Wittig reaction usually gives a mixture of cis and trans
isomers, yet in this
reaction, only the trans isomer is formed. The stereochemistry of
product is set
in the first step of the reaction of the ylid with the aldehyde.
Draw the
intermediate oxaphosphetane that leads to the trans-alkene
geometry, and the
one that would lead to the cis - alkene geometry, showing the
stereochemistry...