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What do you mean by an anomeric carbon? I want an answer preferably for anomeric carbon in carbohydrates (sugars)

Answer 1

In the cyclic form of a sugar, the anomeric carbon is the carbon that was part of the carbonyl group in the straight-chain structure.

For example, the linear structure of glucose is

(from science.uvu.edu)

C-1 is the anomeric carbon.

In D-fructose, the carbonyl group is at #"C-2"#.

(from science.uvu.edu

Here, #"C-2"# is the anomeric carbon.

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Answer 2

Lucy Alessi

An anomeric carbon in carbohydrates is the carbon atom that becomes a chiral center when a straight-chain sugar molecule cyclizes. It is derived from the carbonyl carbon in the open-chain form.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.