23-27. Identify the type of reaction. A. Clemmensen Reduction B. Cannizzaro Reaction C. Claisen Condensation D. Aldol Condensation E. Elimination 23. C6H5CH₂COCH3 + Zn(Hg)/HCl → C6H5CH₂CH₂CH3 + H₂O 24. 2CH3COOCH₂CH3 + C₂H5O-K+/C₂H5OH → CH3COCH₂COOCH₂CH3 + C₂H5OH 25. HCHO + CH3CHO + OH → CH2(OH)CH,CHO 26. HCHO + CH5CHO + OH → CH5CH2OH +HCOO 27. CH3CH(OH)CH₂CH3 + conc. H₂SO4 → CH3CH=CHCH3 + H₂O
Reactive Intermediates
In chemistry, reactive intermediates are termed as short-lived, highly reactive atoms with high energy. They rapidly transform into stable particles during a chemical reaction. In specific cases, by means of matrix isolation and at low-temperature reactive intermediates can be isolated.
Hydride Shift
A hydride shift is a rearrangement of a hydrogen atom in a carbocation that occurs to make the molecule more stable. In organic chemistry, rearrangement of the carbocation is very easily seen. This rearrangement can be because of the movement of a carbocation to attain stability in the compound. Such structural reorganization movement is called a shift within molecules. After the shifting of carbocation over the different carbon then they form structural isomers of the previous existing molecule.
Vinylic Carbocation
A carbocation where the positive charge is on the alkene carbon is known as the vinyl carbocation or vinyl cation. The empirical formula for vinyl cation is C2H3+. In the vinyl carbocation, the positive charge is on the carbon atom with the double bond therefore it is sp hybridized. It is known to be a part of various reactions, for example, electrophilic addition of alkynes and solvolysis as well. It plays the role of a reactive intermediate in these reactions.
Cycloheptatrienyl Cation
It is an aromatic carbocation having a general formula, [C7 H7]+. It is also known as the aromatic tropylium ion. Its name is derived from the molecule tropine, which is a seven membered carbon atom ring. Cycloheptatriene or tropylidene was first synthesized from tropine.
Stability of Vinyl Carbocation
Carbocations are positively charged carbon atoms. It is also known as a carbonium ion.
Step by step
Solved in 2 steps with 2 images
