✦ LIBER ✦

Controlled C-5 methylation of caffeine by benzoyloxy radical addition at C-8

✍ Scribed by J Zylber; L Ouazzani-Chahdi; A Chiaroni; C Riche

Publisher: Elsevier Science
Year: 1988
Tongue: French
Weight: 213 KB
Volume: 29
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)87833-8

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Free radical addition of trichloromethyl

Free radical addition of trichloromethyl to caffeine access to C-8 polyhalogenoalkane derivatives and to unexpected 5-trichloromethyl-1,3,7 trimethyl-5,7-dihydrouric acid

✍ Jean Zylber; Nicole Zylber; Angèle Chiaroni; Claude Riche 📂 Article 📅 1984 🏛 Elsevier Science 🌐 French ⚖ 245 KB

The "Electrophilic" trichloromethyl radical was introduced directly into the model purine compound, caffeine, leading to products 2 and 3 (the former being smoothly converted to the corresponding carboxy ester derivative) ana to the unexpected C-5 substituted title compound 4. -Extensive investigati

Addition of carbon radicals to 4′,5′-uns

Addition of carbon radicals to 4′,5′-unsaturated uracilnucleosides by the use of organoselenium reagents: A new stereoselective entry to CC bond formation at the 5′-position

✍ Kazuhiro Haraguchi; Hiromichi Tanaka; Tadashi Miyasaka 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 262 KB

Addition of carbon radicals generated from organoselenium reagents P SeR: R= COPh, CO\*Et, CH,CO,Et, CH2COMe, and CH,CN) to 4',5'-unsaturated uraciinucleosides was found to provide a highly efficient entry to C-C bond formation at the 5'-position, the stereochemical outcome of which is dependent upo

Reactions of excited C3H5 radicals: Impl

Reactions of excited C3H5 radicals: Implications for the photolysis of propylene at 8.4 eV

✍ Tomasz Gierczak; Janusz Gawlowski; Jan Niedzielski 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 653 KB

Effects of methyl substituents at the cy

Effects of methyl substituents at the cyclopentadienyl ligand on the properties of C5H5TiCl3 and C5H5TiAl2Cl8-x(C2H5)x (x = 0–4) complexes

✍ Karel Mach; Vojtech Varga; Helena Antropiusová; Jindřich Poláček 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 776 KB

Chiral Oxime Ethers in Asymmetric Synthe

Chiral Oxime Ethers in Asymmetric Synthesis. Part 5. Asymmetric Synthesis of 2-Substituted 5- to 8-Membered Nitrogen Heterocycles by Oxime Addition—Ring-Closing Metathesis.

✍ James C. A. Hunt; Pierre Laurent; Christopher J. Moody 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 178 KB 👁 1 views

## Abstract For Abstract see ChemInform Abstract in Full Text.

ChemInform Abstract: Highly Functionaliz

ChemInform Abstract: Highly Functionalized Cyclopentanes by Radical Cyclization of Unsaturated Bromolactones. Part 3. Preparation of Carbaaldohexofuranoses. Determination of the Relative Configuration at C-4/C-5 or 2,3-Unsaturated Heptono-1,4-lactones by Means of 1H NMR Spectroscopy.

✍ Anne Marie Horneman; Inge Lundt 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 views

Highly Functionalized Cyclopentanes by Radical Cyclization of Unsaturated Bromolactones. Part 3. Preparation of Carbaaldohexofuranoses. Determination of the Relative Configuration at C-4/C-5 or 2,3-Unsaturated Heptono-1,4-lactones by Means of 1 H NMR Spectroscopy. -Key step in the synthesis of carb