𝔖 Bobbio Scriptorium
✦   LIBER   ✦

1,3-Dipolar cycloaddition reaction of α,β-unsaturated esters and lactones with diazomethane

✍ Scribed by S. Baskaran; J. Vasu; Ram Prasad.K. Kodukulla; Girish K. Trivedi; J. Chandrasekhar

Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
526 KB
Volume
52
Category
Article
ISSN
0040-4020

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

1,3-Dipolar cycloadditions of cyclic nit
1,3-Dipolar cycloadditions of cyclic nitrones to γ-bromo α,β-unsaturated esters and lactones
✍ Pedro de March; Marta Figueredo; Josep Font; Antonio Salgado 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 630 KB

The 1,3-dipolar cycloaddition of cyclic nitrones to several "t-bromo ct,~unsaturated esters and lactones has been studied. All the reactions have shown high stereoselectivity, with a predominance of the endo or exo transition state for the trans or cis dipolarophiles, respectively.

Synthesis of spiro-1-pyrazolines by the
Synthesis of spiro-1-pyrazolines by the 1,3-dipolar cycloaddition of exocyclic α,β-unsaturated ketones with diazomethane
✍ Artur M. S. Silva; José A. S. Cavaleiro; Albert Lévai; Tamás Patonay 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 641 KB

## Abstract 1,3‐Dipolar cycloadditions of exocyclic α,β‐unsaturated ketones 1‐22 with diazomethane afforded spiro‐1‐pyrazolines 23‐44 in a diastereospecific reaction. The structure and stereochemistry of each compound synthesised has been elucidated by nmr spectroscopic measurements and other analy