Chung, Yongseog’s team published research in Journal of Organic Chemistry in 54 | CAS: 107263-95-6

Journal of Organic Chemistry published new progress about 107263-95-6. 107263-95-6 belongs to pyridine-derivatives, auxiliary class Fluorination reagent, name is 1-Fluoropyridiniumtriflate, and the molecular formula is C6H5F4NO3S, Computed Properties of 107263-95-6.

Chung, Yongseog published the artcileStructural effects controlling the rate of the retro-Diels-Alder reaction in anthracene cycloadducts, Computed Properties of 107263-95-6, the publication is Journal of Organic Chemistry (1989), 54(5), 1018-32, database is CAplus.

A fairly broad study of how the structure of an anthracene cycloadduct affects the rate of its cycloreversion reaction was undertaken. Conclusions were drawn based on the rate constants for retro-Diels-Alder (rDA) reactions of a variety of anthracene-type adducts conducted in di-Ph ether. The rDA reaction of anthracene cycloadducts is influenced by diene substituents in the following ways: (1) electron-donating groups increase the reaction rate, and the accelerating effect is subject to geometric modulation for a conjugating substituent like dimethylamino; (2) electron-withdrawing groups may decrease or increase the reaction rate, although the effect is rarely large; and (3) steric acceleration is relatively small and demonstrates an unprecedented bell-shaped structure-reactivity profile. Peripheral substitution of the adduct with siloxy groups results in a significant acceleration, even though the groups are three bonds removed from the reaction site. The same reaction is influenced by dienophile substituents in the following ways: (1) electron-withdrawing groups increase the rate of the reaction; (2) strongly conjugating substituents make the reaction much faster than predicted by classical electron-withdrawing or -donating ability due to a change to polar mechanism; and (3) there is no observable steric effect.

Journal of Organic Chemistry published new progress about 107263-95-6. 107263-95-6 belongs to pyridine-derivatives, auxiliary class Fluorination reagent, name is 1-Fluoropyridiniumtriflate, and the molecular formula is C6H5F4NO3S, Computed Properties of 107263-95-6.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem