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Unlike aromatic compounds, which follow Hückel's rule ([4n+2] π electrons) [1] and are highly stable, antiaromatic compounds are highly unstable and highly reactive. To avoid the instability of antiaromaticity, molecules may change shape, becoming non-planar and therefore breaking some of the π interactions.
Sweeteners other than sugar are added to keep the food energy low, or because they have beneficial effects for diabetes mellitus and tooth decay. Thickeners Caffeine and other GRAS (generally recognized as safe) additives such as sugar and salt are not required to go through the regulation process.
A sugar substitute is a food additive that provides a sweetness like that of sugar while containing significantly less food energy than sugar-based sweeteners, making it a zero-calorie (non-nutritive) [2] or low-calorie sweetener. Sugar substitute products are commercially available in various forms, such as small pills, powders and packets.
Some peanut butter has added sugars, so check the ingredients list to ensure yours is added-sugar-free. Ones without added sugars are often marketed as “natural,” but scan the ingredients.
In contrast to the rarity of Möbius aromatic ground state molecular systems, there are many examples of pericyclic transition states that exhibit Möbius aromaticity. The classification of a pericyclic transition state as either Möbius or Hückel topology determines whether 4N or 4N + 2 electrons are required to make the transition state aromatic or antiaromatic, and therefore, allowed or ...
Aspartame is an artificial non-saccharide sweetener commonly used as a sugar substitute in foods and beverages. [4] 200 times sweeter than sucrose, it is a methyl ester of the aspartic acid/phenylalanine dipeptide with brand names NutraSweet, Equal, and Canderel. [4]
Isomalt is widely used for the production of sugar-free candy, especially hard-boiled candy, because it resists crystallization much better than the standard combinations of sucrose and corn syrup. It is used in sugar sculpture for the same reason. [6] Isomalt can also be used as a plasticizer for high methoxyl pectin films. It reduces the ...
The discovery that [18]annulene possesses a number of key properties associated with other aromatic molecules was an important development in the understanding of aromaticity as a chemical concept. In the related annulynes , one double bond is replaced by a triple bond .