TAILIEUCHUNG - Chapter 10: Pericyclic Reactions（周环反应）

Continuous concerted reorganisation of electrons, 5 major categories: Electrocyclic ring opening closure, cycloaddition, cycloreversion reactions, cheletropic reactions,. is the main content of the lesson chapter 10 "Pericyclic Reactions 周环反应". Invite you to consult. | Chapter 10 Pericyclic Reactions（周环反应） Pericyclic Reactions Continuous concerted reorganisation of electrons 5 major categories: Electrocyclic ring opening/closure Cycloaddition/cycloreversion reactions Cheletropic reactions (. carbene addition) Group transfer reactions (. H2 transfer) Sigmatropic rearrangements Sigmatropic Rearrangements Migration of a s-bond across a conjugated p-system [m,n] shift when the s-bond migrates across m atoms of one system and n of another Conjugated π Systems Suprafacial/Antarafacial Suprafacial migration: Group moves across same face Antarafacial migration: Group moves from one face to the other FMO Analysis [1,3] Sigmatropic Rearrangements: H migration FMO Analysis [1,3] Sigmatropic Rearrangements: C migration FMO Analysis [1,5] Sigmatropic Rearrangements Dewar-Zimmerman Dewar-Zimmerman model: Choose a set of 2p atomic orbitals and arbitrarily assign phase Connect the orbitals in the starting material Allow reaction to proceed according to .

• Hoá học
• Sigmatropic Rearrangements
• Pericyclic Reactions
• 5 major categories
• Electrocyclic ring opening closure
• Cycloreversion reactions
• Cheletropic reactions