𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Purine N-oxides—XL: The 3-acyloxypurine 8-substitution reaction: Scope: Syntheses of 8-substituted xanthines and guanines

✍ Scribed by N.J.M. Birdsall; U. Wölcke; T.-C. Lee; G.B. Brown

Book ID
108372723
Publisher
Elsevier Science
Year
1971
Tongue
French
Weight
804 KB
Volume
27
Category
Article
ISSN
0040-4020

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Purine n-oxides XXIV. The preparation of
Purine n-oxides XXIV. The preparation of 8-substituted xanthines and guanines by a nucleophilic displacement of a 3-substituent
✍ Uwe Wölcke; Nigel J.M. Birdsall; George Bosworth Brown 📂 Article 📅 1969 🏛 Elsevier Science 🌐 French ⚖ 188 KB

In a recent publication (2) on the rearrangement of purine j-N-oxides to 8-hydroxypurines in acid anhydrides, a postulated intermediate was the 0-acyl derivative of the N-oxide. Such an intermediate, 3-acetoxyxanthine (II), [ctx5 267 mp (E 14,000)], has now been prepared by

The scope and limitations of the Suzuki–
The scope and limitations of the Suzuki–Miyaura cross-coupling reactions of 6- and 8-substituted 1,2,3,4-tetrahydroisoquinoline-3-carboxylates
✍ Jeffrey M McKenna; John Moliterni; Ying Qiao 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 94 KB

Aryl-1,2,3,4-tetrahydroisoqinoline-3-carboxylates have been prepared by Suzuki-Miyaura cross-coupling reactions of the triflates or corresponding boronate esters. We have shown for the first time that a one-pot arylation of a triflate via the boronate ester can be achieved using an aryl chloride.