✦ LIBER ✦

Parallel Solid-Phase Synthesis of 2-Imino-4-oxo-1,3,5-triazino[1,2- a ]benzimidazoles via Tandem Aza-Wittig/Heterocumulene-Mediated Annulation Reaction

✍ Scribed by Hoesl, Cornelia E.; Nefzi, Adel; Houghten, Richard A.

Book ID: 125535255
Publisher: American Chemical Society
Year: 2003
Tongue: English
Weight: 111 KB
Volume: 5
Category: Article
ISSN: 1520-4766
DOI: 10.1021/cc020077e

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthesis of 3-Amino-1,2,4-benzothiadi-

Synthesis of 3-Amino-1,2,4-benzothiadi- azine 1,1-Dioxides via a Tandem Aza-Wittig/Heterocumulene Annulation

✍ Blackburn, Christopher; Achab, Abe; Elder, Amy; Ghosh, Shomir; Guo, Jianping; Ha 📂 Article 📅 2005 🏛 American Chemical Society 🌐 English ⚖ 257 KB

Efficient synthesis of benzothieno[3,2-d

Efficient synthesis of benzothieno[3,2-d]-1,2,4-triazolo [1,5-a]pyrimidin-5(1H)-ones via a tandem aza-Wittig/heterocumulene-mediated annulation

✍ Sheng-Zhen Xu; Min-Hui Cao; Chang-Shui Chen; Ming-Wu Ding 📂 Article 📅 2009 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 89 KB

## Abstract magnified image The carbodiimides **2**, obtained from reactions of iminophosphorane **1** with isocyanates, reacted with hydrazine to give selectively 3‐amino‐2‐arylaminobenzothieno[3,2‐__d__]pyrimidin‐4(3__H__)‐ones **4**. Reactions of **4** with triphenylphosphine, hexachloroethane,

New Efficient Synthesis of 1,2,4-Triazol

New Efficient Synthesis of 1,2,4-Triazolo[5,1-b]quinazolin-9(3H)-ones via a Tandem Aza-Wittig/Heterocumulene-Mediated Annulation.

✍ Ming-Wu Ding; Yun-Feng Chen; Nian-Yu Huang 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 29 KB 👁 1 views

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

New Efficient Synthesis of 1,2,4-Triazol

New Efficient Synthesis of 1,2,4-Triazolo[5,1-b]quinazolin-9(3H)-ones via a Tandem Aza-Wittig/Heterocumulene-Mediated Annulation

✍ Ming-Wu Ding; Yun-Feng Chen; Nian-Yu Huang 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 144 KB

Abnormal aza-Wittig reaction on the soli

Abnormal aza-Wittig reaction on the solid-phase: chemoselectivity studies towards the parallel synthesis of 3-aryl-2,4-dioxo-1,3,5-triazino[1,2-a]benzimidazoles

✍ Cornelia E Hoesl; Adel Nefzi; Richard A Houghten 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 338 KB

An abnormal aza-Wittig reaction was observed when resin-bound iminophosporanes were treated with aryl isocyanates on the solid-phase. The mechanism of the reaction may involve the loss of triphenylphosphinimide instead of triphenylphosphinoxide, resulting in the formation of isocyanates instead of c

ChemInform Abstract: Efficient Synthesis

ChemInform Abstract: Efficient Synthesis of Benzothieno[3,2-d]-1,2,4-triazolo[1,5-a]pyrimidin-5(1H)-ones via a Tandem Aza-Wittig/Heterocumulene-Mediated Annulation.

✍ Sheng-Zhen Xu; Min-Hui Cao; Chang-Shui Chen; Ming-Wu Ding 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 47 KB 👁 1 views