Carbene-alkyne-alkene cyclization reactions

Article Abstract:

Transition-metal-based reactions are frequently used chemical reactions in organic synthesis. The efficiency of these reactions lie on their ability to exhibit high levels of chemo-, regio-, and stereoselectivity despite having high reactivity. They also create several new bonds in a single operation. This review focuses on the reactions of a variety of transition metal carbene complexes with alkynes and alkenes via cyclizations for the construction of vinylcarbene complex and metallacyclobutane intermediates, respectively. The discussion includes the factors influencing carbene-alkyne-alkene cyclization reactions.

---

Cyclic carbopalladation. A versatile synthetic methodology for the construction of cyclic organic compounds

Article Abstract:

Palladium (Pd) complexes are finding wide applicability in organic synthesis as reaction catalysts because they allow easy entry of carbon-carbon bonds and exhibit reversible interconversion between two stable oxidation states. This versatility has prodded chemists to explore the possibility of using Pd complexes in cyclization reactions. This review focuses on a new synthetic methodology for the creation of cyclic organic compounds via cyclic carbopalladation. The discussion includes examples of reactions involving carbopalladation with alkenes, alkynes, conjugated dienes and allenes.

Usage, Cyclic compounds, Palladium catalysts

---

Similar abstracts:

• Abstracts: Chiral poisoning and asymmetric activation. A concise update on the applications of chiral ferrocenyl phosphines in homogeneous catalysis leading to organic synthesis
• Abstracts: Stereoselective approaches to bioactive carbohydrates and alkaloids - with a focus on recent syntheses drawing from the chiral pool
• Abstracts: Total syntheses of pumiliotoxin A and allopumiliotoxin alkaloids. Interplay of pharmacologically active natural products and new synthetic methods and strategies
• Abstracts: Tandem Diels-Alder cycloadditions in organic synthesis. Cascade processes of metallo carbenoids. Tandem [4+2]/[3+2] cycloadditions of nitroalkenes

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.