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- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_(Morsch_et_al.)/29%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/29.06%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
- https://chem.libretexts.org/Courses/Smith_College/CHM_223_Chemistry_III%3A_Organic_Chemistry_(2024)/09%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/9.06%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Basic_Principles_of_Organic_Chemistry_(Roberts_and_Caserio)/11%3A_Alkenes_and_Alkynes_II_-_Oxidation_and_Reduction_Reactions._Acidity_of_Alkynes/11.07%3A_Oxidation_ReactionsMost alkenes react readily with ozone, even at low temperatures, to yield cyclic peroxidic derivatives known as ozonides. Ozonization of alkenes has been studied extensively for many years, but there ...Most alkenes react readily with ozone, even at low temperatures, to yield cyclic peroxidic derivatives known as ozonides. Ozonization of alkenes has been studied extensively for many years, but there is still disagreement about the mechanism (or mechanisms) involved because some alkenes react with ozone to give oxidation products other than ozonides. Several oxidizing reagents react with alkenes under mild conditions to give, as the overall result, addition of hydrogen peroxide.
- https://chem.libretexts.org/Courses/Smith_College/Organic_Chemistry_(LibreTexts)/29%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/29.06%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
- https://chem.libretexts.org/Courses/Providence_College/Organic_Chemistry_I/11%3A_Synthesis_and_Reactivity_of_Alkynes/11.03%3A_Cycloaddition_Reactions_of_AlkynesThe mechanism is quite complex but is thought to proceed via a [2+1] cycloaddition of the alkyne to give a bridged bromonium ion intermediate that contains a double bond – a highly reactive intermedia...The mechanism is quite complex but is thought to proceed via a [2+1] cycloaddition of the alkyne to give a bridged bromonium ion intermediate that contains a double bond – a highly reactive intermediate. Halohydration – This will result in the formation of an α-haloketone formed by addition of water and a halogen across the triple bond. Oxymercuration – This will result in the formation of a ketone, formed by Markovnikov addition of water across the triple bond.
- https://chem.libretexts.org/Courses/Westminster_College/CHE_261_-_Organic_Chemistry_I/09%3A_Electrophilic_Addition_Reactions_of_Alkenes_and_Alkynes/9.11%3A_More_Electrophilic_AdditionsMost alkenes react readily with ozone, even at low temperatures, to yield cyclic peroxidic derivatives known as ozonides. Ozonization of alkenes has been studied extensively for many years, but there ...Most alkenes react readily with ozone, even at low temperatures, to yield cyclic peroxidic derivatives known as ozonides. Ozonization of alkenes has been studied extensively for many years, but there is still disagreement about the mechanism (or mechanisms) involved because some alkenes react with ozone to give oxidation products other than ozonides. Several oxidizing reagents react with alkenes under mild conditions to give, as the overall result, addition of hydrogen peroxide.
- https://chem.libretexts.org/Courses/Providence_College/Organic_Chemistry_I/10%3A_Addition_Reactions_of_Alkenes/10.02%3A_Concerted_CycloadditionsFor example, a [2+1] cycloaddition involves a 3-membered ring transition state where two atoms of the ring come from the alkene substrate (HOMO, nucleophile) and one atom of the ring comes from the el...For example, a [2+1] cycloaddition involves a 3-membered ring transition state where two atoms of the ring come from the alkene substrate (HOMO, nucleophile) and one atom of the ring comes from the electrophile. Because of the 5-membered ring transition state, the delivery of the two alcohol functional groups occurs from the same face of the alkene.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_III_(Morsch_et_al.)/29%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/29.06%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
- https://chem.libretexts.org/Courses/can/CHEM_232_-_Organic_Chemistry_II_(Puenzo)/15%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/15.07%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_(OpenStax)/30%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/30.06%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
- https://chem.libretexts.org/Workbench/LCDS_Organic_Chemistry_OER_Textbook_-_Todd_Trout/30%3A_Orbitals_and_Organic_Chemistry_-_Pericyclic_Reactions/30.07%3A_Stereochemistry_of_CycloadditionsFrontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created ...Frontier orbital theory can be used to predict if a given cycloaddition will occur with suprafacial or with antarafacial geometry. In a standard Diels-Alder reaction, bonding interactions are created when the electron containing HOMO of the diene donates electrons to the electron vacant LUMO of the other the dienophile. The dienophile has one pi bond, so it will use the pi MOs for a 2 atom system.
