Question

5. Provide the Product(s) for the following reactions. H2C=N2 a) Lai CH2C12 EtOH H2C=CH2 b) C=0 hv this one Give the common name of the reaction in a). 10 points Give the common name of the starting material in b)_ 10 points

Answer 1

(a) Name reaction: Arndt–Eistert reaction

The Arndt-Eistert Synthesis allows the formation of homologated carboxylic acids or their derivatives by reaction of the acyl chlorides with diazomethane and subsequent Wolff-Rearrangement of the intermediate diazoketones in the presence of nucleophiles such as water, alcohols, or amines.

Arndt-Eistert reaction som har x-**--3 *** оо.Et LOCO 12 Eto ΗΤΗ HH. CH `CH₃ HC H CH3 H3CH насен

(b) Common name of the starting material: ketene [IUPAC name of the compound: 2-methylprop-1-en-1-one]

The [2 + 2] cycloaddition of alkenes and ketenes to form cyclobutanones is one of the few general methods for the construction of four-membered rings. Cycloadditions of ketenes and alkenes may involve either concerted or stepwise pathways, and it is often difficult to distinguish the two mechanistic possibilities. After absorbing the light, the activated ketene reacts with the olefin. See below:

povo - kadrs] ) -. 2-methylprop-1-en-1-one