0 owlLv? 1 Onine leaching and The chemical environment of carbons can be deduced
ID: 1076463 • Letter: 0
Question
0 owlLv? 1 Onine leaching and The chemical environment of carbons can be deduced ferm their chemical shifts. Deduce the relative chemical shifts of the carbons at the labeled positions. (Carbons that are bighly shiclded have low delta, chemical shift, vahes The carbon with the smallest delta value (the most hielded) is The carbon with the largest delta value tthe most deshielded) ibs 2) The carbon with the smallest delta valae (the most shielded) is The carbon with the larpest delta value ithe mont deshiclded) is Ratry Entie Group 2 more group aftempts renainingExplanation / Answer
Page-1
Compound-1
The carbon with the smallest delta value (the most shielded) = a (far away from 'O' atom as wellas aromatic ring)
The carbon with the largest delta value (the most deshielded) = c (deshielded due to adjacent 'O' and aromatic ring)
Compound-2
The carbon with the smallest delta value (the most shielded) = c (far away from 'O' atom )
The carbon with the largest delta value (the most deshielded) = b (deshielded due to adjacent 'O' and double bond)
Page-2
Compound-1
The carbon with the smallest delta value (the most shielded) =b (far away from 'N' atom and no aromativity in the ring)
The carbon with the largest delta value (the most deshielded) = c (deshielded due to aromatic ring)
Compound-2
The carbon with the smallest delta value (the most shielded) = c (aliphatic and far away from aromatic ring )
The carbon with the largest delta value (the most deshielded) = b (deshielded due to aromatic ring)
Page-3
Compound-1
The carbon with the smallest delta value (the most shielded) =b (bonded with comparitively less electronegative 'S')
The carbon with the largest delta value (the most deshielded) = c (deshielded due to caronyl)
Compound-2
The carbon with the smallest delta value (the most shielded) = c ( far away from 'O' atom )
The carbon with the largest delta value (the most deshielded) = a (deshielded due to caronyl and adjacent -OH)
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