✦ LIBER ✦

Solvent effects on regioselection in 4+3→7 cyclizations. A stepwise reaction of trans-1,3-pentadiene.

✍ Scribed by H.M.R. Hoffmann; R. Chidgey

Book ID: 104240313
Publisher: Elsevier Science
Year: 1978
Tongue: French
Weight: 297 KB
Volume: 19
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)88990-5

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Solvent Effect on the Volume of the Diel

Solvent Effect on the Volume of the Diels-Alder Reaction between Tetracyanoethylene and trans,trans-1,4-Diphenyl-1,3-butadiene

✍ V. D. Kiselev; M. D. Medvedeva; E. A. Kashaeva; M. S. Shikhaab; G. G. Iskhakova; 📂 Article 📅 2002 🏛 Springer 🌐 English ⚖ 42 KB

Solvent Effect in the Thermal Decomposit

Solvent Effect in the Thermal Decomposition Reaction of trans -3,3-Dimethyl-5,6-tetramethylene-1,2,4-trioxacyclohexane

✍ Eyler, Gladys N.; Cañizo, Adriana I.; Mateo, Carmen M.; Alvarez, Elida E.; Caffe 📂 Article 📅 1999 🏛 American Chemical Society 🌐 English ⚖ 46 KB

Solvent Effect on the Activation Volume

Solvent Effect on the Activation Volume of the Diels-Alder Reaction Between Tetracyanoethylene and trans,trans-1,4-Diphenyl-1,3-butadiene

✍ V. D. Kiselev; M. S. Shikhaab; G. G. Iskhakova; A. I. Konovalov 📂 Article 📅 2002 🏛 Springer 🌐 English ⚖ 69 KB

Stepwise dimerization of double [2 + 2]

Stepwise dimerization of double [2 + 2] reaction in the co-crystals of 1,5-bis(4-pyridyl)-1,4-pentadiene-3-one and phloroglucinol: a single-crystal to single-crystal transformation

✍ Santra, Ramkinkar; Biradha, Kumar 📂 Article 📅 2008 🏛 Royal Society of Chemistry 🌐 English ⚖ 553 KB

A facile one-pot regioselective synthesi

A facile one-pot regioselective synthesis of [1,2,4]triazolo[4,3-a]5(1H)-pyrimidinones via tandem Japp–Klingemann, Smiles rearrangement, and cyclization reactions

✍ Ahmad S. Shawali; Magda A. Abdallah; Mosselhi A. N. Mosselhi; Thoraya A. Farghal 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 137 KB

## Abstract Coupling of active [(4‐oxo‐6‐phenyl‐3__H__‐pyrimidin‐2‐yl)thio]methine compounds (**3**) with diazotized anilines in the presence of base gave [1,2,4]triazolo[4,3‐a]pyrimidines (**7**). The latter products were also obtained by reactions of hydrazonoyl chlorides (**10**) with either 6‐p

Remarkable effect of water in a regiosel

Remarkable effect of water in a regioselective lithiation of 5-(tert-butoxycarbonyl)-7-methoxy-1-methyl-1,3,4,5-tetrahydropyrrolo[4,3,2-de]quinoline

✍ Yoshihiro Moro-oka; Satoru Iwakiri; Tsutomu Fukuda; Masatomo Iwao 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 180 KB

5-(tert-Butoxycarbonyl)-7-methoxy-1-methyl-1,3,4,5-tetrahydropyrrolo[4,3,2-de]quinoline (1b) was lithiated regioselectively at C-6 with sec-BuLi (3.0 equiv.) in the presence of water (1.0 equiv.) in ether at ^78 C. Under conventional conditions, 1b was lithiated non-regioselectively at the C-6, C-8