Formation and catalytic hydrogenation of the dimer of 1,2,3,4,5,7a-hexahydroimidazo[1,2-a]pyrazine

Syntheses of 2,3-dicyano-5a,8a-dihydro-5

Syntheses of 2,3-dicyano-5a,8a-dihydro-5a-hydroxycyclopentano[1′,2′:4,5]pyrrolo[2,3-b]pyrazines and 2,3-dicyanocyclohexano[1′,2′:4,5]pyrrolo-[2,3-b]pyrazines

✍ Kazuko Shirai; Koushi Fukunishi; Dongfeng Hou; Masaru Matsuoka 📂 Article 📅 2000 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 450 KB 👁 1 views

## Abstract Previously synthesized 2‐(3′‐chloro‐5′,6′‐dicyanopyrazin‐2′‐yl)cyclopentan‐1‐one **1**, obtained from the reaction of 2,3‐dichloro‐5,6‐dicyanopyrazine with 1‐pyrrolidino‐1‐cyclopentene, was further reacted with primary alkylamines to give mixtures of diastereomer of 5‐alkyl‐2,3‐dicyano‐

ChemInform Abstract: 2,2,5,5,8,8-Hexamet

ChemInform Abstract: 2,2,5,5,8,8-Hexamethyl-2,3,5,6,7,8-hexahydroimidazo [1,2-a]pyrazine-3,6-dione, a Bicyclic Product of α-Aminoisobutyric Acid Condensation.

✍ Vladimir A. Basiuk; Luc Van Meervelt; Vadim A. Soloshonok; Elena V. Basiuk 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Synthesis of 5-Oxo-

ChemInform Abstract: Synthesis of 5-Oxo-1,2,3,5,6,7-hexahydroimidazo(1,2-a)pyridine-8- carbonitriles, 6-Oxo-2,3,4,6,7,8-hexahydro-1H-pyrido(1,2-a)pyrimidine- 9-carbonitriles, and 7-Oxo-1,2,3,4,5,7,8,9-octahydropyrido(1,2-a)(1,3) diazepine-10-carbonitriles.

✍ P. VICTORY; N. BUSQUETS; J. I. BORRELL; J. TEIXIDO; C. DE ALVARO; A. ARENAS; A. 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB

Dipyrrolo[1,2-a;2′,1′-c]pyrazines. Part

Dipyrrolo[1,2-a;2′,1′-c]pyrazines. Part 7. Electrophilic Substitution of Dipyrrolo[1,2-a;2′,1′-c]pyrazines and 5,6-Dihydrodipyrrolo[1,2-a;2′,1′-c]pyrazines via Formylation of Dipyrrolo[1,2-a;2′,1′-c]pyrazines.

✍ V. I. Terenin; E. A. Sumtsova; M. A. Kovalkina; S. Z. Vatsadze; E. V. Kabanova; 📂 Article 📅 2004 🏛 John Wiley and Sons ⚖ 114 KB 👁 1 views

ChemInform Abstract: Syntheses of 2,3-Di

ChemInform Abstract: Syntheses of 2,3-Dicyano-5a,8a-dihydro-5a-hydroxycyclopentano[1′,2′:4,5]pyrrolo [2,3-b]pyrazines and 2,3-Dicyanocyclohexano[1′,2′:4,5]pyrrolo[2,3-b]pyrazines.

✍ Kazuko Shirai; Dongfeng Hou; Koushi Fukunishi; Masaru Matsuoka 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Dipyrrolo[1,2-a; 2′,1′-c]pyrazines. 4. A

Dipyrrolo[1,2-a; 2′,1′-c]pyrazines. 4. Aminomethylation of alkyl substituted dipyrrolo[1,2-a; 2′,1′-c]pyrazines and 5,6-dihydrodipyrrolo[1,2-a; 2′,1′-c]pyrazines

✍ V. I. Terenin; E. L. Ruchkina; A. P. Pleshkova; Yu. G. Bundel 📂 Article 📅 1998 🏛 Springer US 🌐 English ⚖ 441 KB