16-35 continued Nitrogens whose electrons are needed to complete the aromatic 1t system will not be basic . ••,... basic (D � + (g) � + (h) + �,... not basic (i) �,... basic (j) NH2 o 9 c;):;iC C�"�ic tf.:a,iC aromatic, •• 0.. sp3 + NO : :0 : H not basic ••-••-aromatic; N is not basic but the 0-is a weak base aromatic NOT aromatic because of sp3 carbon; both N are basic, although the top one (k) +� [j B-H aromatic; not basic H N (I) (::] o .. NOT aromatic: if
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