✦ LIBER ✦

Cycloadditions of Ketene Diethyl Acetal and 2-Methylene-1,3-dioxepane to Electrophilic Alkenes †

✍ Scribed by Johnston, Keith; Padias, Anne Buyle; Bates, Robert B.; Hall, H. K.

Book ID: 126417105
Publisher: American Chemical Society
Year: 2003
Tongue: English
Weight: 83 KB
Volume: 19
Category: Article
ISSN: 0743-7463
DOI: 10.1021/la027063a

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Cycloadditions of Ketene Diethyl Acetal

Cycloadditions of Ketene Diethyl Acetal and 2-Methylene-1,3- Dioxepane to Electrophilic Alkenes

✍ Keith Johnston; Anne Buyle Padias; Robert B. Bates; H. K. Jr. Hall 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 52 KB

Reactivity of 2-Acylaminoacrylates with

Reactivity of 2-Acylaminoacrylates with Ketene Diethyl Acetal; [2 + 2] Cycloadditions vs. Tandem Condensations.

✍ Alberto Avenoza; Jesus H. Busto; Noelia Canal; Jesus M. Peregrina 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 139 KB

Ring opening during the cationic polymer

Ring opening during the cationic polymerization of 2-methylene-1,3-dioxepane: Cyclic ketene acetal initiation with sulfuric acid supported on carbon

✍ Peter C. Zhu; Zhihong Wu; Charles U. Pittman Jr. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 740 KB

The stable cyclic ketene acetal, 2-metbylene-1,3-dioxepane, 7, has been polymerized cat ionically in pentane, CHzClj and THF at 25°C to form a polymer which is composed of both ring-opened (40-50% ) and ring-retained (50-60%) structures. Init iatiorr was catalyzed by using H2S0, -supported on activa

ChemInform Abstract: 1,3-Dipolar Cycload

ChemInform Abstract: 1,3-Dipolar Cycloadditions. Part 14. Highly Selective Cycloadditions of C,N-Diaryl Nitrones to Diethyl Aryl Methylene Malonates.

✍ A. Banerji; S. Sengupta; A. Nayak; P. K. Biswas; B. Bhattacharya; S. Dasgupta; R 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 25 KB 👁 1 views

Formal [2 + 2 + 1] and [4 + 1] cycloaddi

Formal [2 + 2 + 1] and [4 + 1] cycloadditions of electron poor alkenes to pentacarbonyl[(N,N-dimethylamino)methylene]chromium

✍ Sierra, Miguel A.; Soderberg, Bjorn; Lander, Peter A.; Hegedus, Louis S. 📂 Article 📅 1993 🏛 American Chemical Society 🌐 English ⚖ 267 KB

Zwitterions as Intermediates in 1,3-Dipo

Zwitterions as Intermediates in 1,3-Dipolar Cycloadditions of Electrophilic Azides to 2-Alkylidenetetrahydroimidazoles and 2-Alkylidenedihydrobenzimidazoles

✍ Quast, Helmut ;Ach, Manfred ;Ivanova, Svetlana ;Peters, Eva-Maria ;Peters, Karl 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 736 KB

## Abstract Cyclic ketene __N,N__‐acetals derived from imidazolidine (4a, c) and 2,3‐dihydrobenzimidazole (6a–c) add methanesulphonyl azide (2a) or picryl azide (2f) to afford the zwitterions 5 and 7, respectively. The structure of 7d is elucidated by X‐ray crystallography. Reversibility of formati