Synthesis of Novel Bispyrimido[1,2-b:1′,2′-e][1,2,4,5]tetrazines

A new one-step synthesis of pyrimido-[1,

A new one-step synthesis of pyrimido-[1,2-b][1,2,4,5]tetrazines

✍ Ahmad S. Shawali; Ahmad A. Elghandour; Said M. El-Sheikh 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 138 KB 👁 1 views

Hydrazonoyl halides 4 react readily with either 3-amino-2,3-dihydro-6-methyl-2-thioxo-4(1H)-pyrimidinone 5 or 3-amino-6-methyl-2-methylthio-4(3H)-pyrimidinone 6 to form 6H-pyrimido [1,2-b][1,2,4,5]tetrazin-6-ones 9. The mechanism of the studied reactions is discussed.

A One-Pot Synthesis of [1,2,4]Triazino[4

A One-Pot Synthesis of [1,2,4]Triazino[4,3-b]-[1,2,4,5]tetrazines

✍ Ahmad S. Shawali; Ahmad A. Elghandour; Said M. El-Sheikh 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 107 KB 👁 1 views

1,2,4,5-Tetrazin-1(2H)-yl-Radikale

✍ Neugebauer, Frnz Alfred ;Siegel, Rolf 📂 Article 📅 1985 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 354 KB 👁 1 views

ChemInform Abstract: A New One-Step Synt

ChemInform Abstract: A New One-Step Synthesis of Pyrimido[1,2-b][1,2,4,5]tetrazines

✍ Ahmad S. Shawali; Ahmad A. Elghandour; Said M. El-Sheikh 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB

## 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 Triazo

ChemInform Abstract: Synthesis of Triazolo[4,3-b][1,2,4,5]tetrazines.

✍ G. L. Rusinov; I. N. Ganebnykh; O. N. Chupakhin 📂 Article 📅 2000 🏛 John Wiley and Sons ⚖ 33 KB

## 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

1,2,4,5-Tetrazine: Synthesis and Reactiv

1,2,4,5-Tetrazine: Synthesis and Reactivity in [4+2] Cycloadditions

✍ Jürgen Sauer; Dieter K. Heldmann; Josef Hetzenegger; Josef Krauthan; Heinz Siche 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 239 KB 👁 1 views

Full details on the reactivity of the title compound as 4π ketene acetals and aminals, as well as several cyclic enol ethers were used as dienophiles in these investigations. A component in inverse-type Diels-Alder reactions, including kinetic data, are reported. Donor-substituted alkynes, number of