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- https://chem.libretexts.org/Workbench/LCDS_Organic_Chemistry_OER_Textbook_-_Todd_Trout/30%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/30.10%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsThe summary in Table 30.1, Table 30.2, and Table 30.3 can be distilled into a mnemonic phrase that provides an easy way to predict the stereochemical outcome of any pericyclic reaction: A change eithe...The summary in Table 30.1, Table 30.2, and Table 30.3 can be distilled into a mnemonic phrase that provides an easy way to predict the stereochemical outcome of any pericyclic reaction: A change either from thermal to photochemical or from an even to an odd number of electron pairs changes the outcome from conrotatory/antarafacial to disrotatory/suprafacial.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_(Morsch_et_al.)/29%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/29.09%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsThe page discusses the importance of understanding the mechanistic factors of pericyclic reactions for predictability and control. It outlines a method based on transition state electron count to pred...The page discusses the importance of understanding the mechanistic factors of pericyclic reactions for predictability and control. It outlines a method based on transition state electron count to predict the favored configurational path of such reactions, categorizing electron reorganizations into 4n+2 or 4n.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_(OpenStax)/30%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/30.09%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsThis section summarizes the key rules governing pericyclic reactions, which include the conservation of orbital symmetry, the requirement for specific electron counts, and the influence of reaction co...This section summarizes the key rules governing pericyclic reactions, which include the conservation of orbital symmetry, the requirement for specific electron counts, and the influence of reaction conditions on outcomes. The rules help predict the feasibility and stereochemical results of these reactions, emphasizing the importance of symmetry in molecular orbitals.
- https://chem.libretexts.org/Courses/Smith_College/Organic_Chemistry_(LibreTexts)/29%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/29.09%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsIn most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons. It is important to remember that going from thermal to ...In most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons. It is important to remember that going from thermal to photochemical conditions or going from 4n to 4n+2 reaction electrons changes the outcome of the reaction.
- https://chem.libretexts.org/Courses/Smith_College/CHM_223_Chemistry_III%3A_Organic_Chemistry_(2024)/09%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/9.09%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsBefore pericyclic reactions can be put to use in a predictable and controlled manner, a broad mechanistic understanding of the factors that influence these concerted transformations must be formulated...Before pericyclic reactions can be put to use in a predictable and controlled manner, a broad mechanistic understanding of the factors that influence these concerted transformations must be formulated. In most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Synthesis_(Shea)/01%3A_Pericyclic_Reactions/1.01%3A_Introduction_to_Pericyclic_ReactionsThis page provides an overview of the three types of pericyclic reactions: cycloadditions, electrocyclic reactions, and sigmatropic rearrangements.
- https://chem.libretexts.org/Courses/can/CHEM_232_-_Organic_Chemistry_II_(Puenzo)/15%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/15.10%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsIn most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons. It is important to remember that going from thermal to ...In most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons. It is important to remember that going from thermal to photochemical conditions or going from 4n to 4n+2 reaction electrons changes the outcome of the reaction.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Supplemental_Modules_(Organic_Chemistry)/Reactions/Pericyclic_ReactionsA pericyclic reaction is a concerted reaction in which the number of rings in the transition state is greater than the total number of rings in the reactant molecules.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_III_(Morsch_et_al.)/29%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/29.09%3A_A_Summary_of_Rules_for_Pericyclic_ReactionsIn most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons. It is important to remember that going from thermal to ...In most of the earlier examples, pericyclic reactions were described by a cycle of curved arrows, each representing a pair of bonding electrons. It is important to remember that going from thermal to photochemical conditions or going from 4n to 4n+2 reaction electrons changes the outcome of the reaction.
