ChemInform Abstract: The Reaction of Wittig and Wittig—Horner Reagents with Dicyanomethylene Derivatives of Fluorenone, Xanthone, and Thiaxanthone. A Novel Synthesis of Phosphoranylidenecyclobutylidene Derivatives.

The reaction of Wittig and Wittig–Horner

The reaction of Wittig and Wittig–Horner reagents with dicyanomethylene derivatives of fluorenone, xanthone, and thiaxanthone. A novel synthesis of phosphoranylidenecyclobutylidene derivatives

✍ Leila S. Boulos; Hoda A. Abd-El-Malek 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 211 KB

Wittig reagents 1a,b react with dicyanomethylene derivatives of fluorenone (3) and xanthone (4) to give the corresponding phosphoranylidenecyclobutylidene adducts 6a, 6b, 9a, and 9b. On the other hand, the reaction of Wittig-Horner reagents (2) with the same nitriles 3 and 4 afforded the respective

ChemInform Abstract: Synthesis of Ajmali

ChemInform Abstract: Synthesis of Ajmalicine Derivatives Using Wittig—Horner and Knoevenagel Reactions.

✍ Ahcene Boumendjel; Jean-Marc Nuzillard; Georges Massiot 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 37 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: The Reaction of Wit

ChemInform Abstract: The Reaction of Wittig and Wittig—Horner Reagents and Alkyl Phosphites with 1,2-Naphthoquinone-1-benzimide.

✍ Mona H. N. Arsanious 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

The Reaction of Wittig and Wittig-Horner Reagents and Alkyl Phosphites with 1,2-Naphthoquinone-1-benzimide. -In order to determine the preferential site of attack of organophosphorus reagents towards quinone imines, the action of phosphonium ylides (II), the anions of phosphonoacetates (V), and alk

ChemInform Abstract: A New Excellent Dia

ChemInform Abstract: A New Excellent Diastereoselective Synthesis of β-Coumarinylacrylates Using the Wittig and Wittig—Horner Reagents: Salient Features of Their Stereochemistry and Preferred Conformation.

✍ Lakshmi Narayan Dutta; Prabir Kumar De 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB

ChemInform Abstract: The Reactions of Wi

ChemInform Abstract: The Reactions of Wittig-Horner Reagents with 1,3-Dioxo-δ2,α -indanmalononitrile.

✍ L. S. BOULOS; EL-S. M. A. YAKOUT 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 1 views

The Reactions of Wittig-Horner Reagents with 1,3-Dioxo-δ2,αindanmalononitrile. -The reaction of title compound (II) with reagents (Ia)-(Ie) affords different products depending on the nature of the phosphonate and the stability of the addition products. -(BOULOS, L. S.; YAKOUT,

ChemInform Abstract: A Shortcut and Ster

ChemInform Abstract: A Shortcut and Stereoselective Synthesis of 1-β-Alkyl-2-deoxy-D-ribose Derivatives via Wittig—Horner—Emmons Reaction.

✍ Naoko Matsuura; Yoshitaka Yashiki; Shouji Nakashima; Minoru Maeda; Shigeki Sasak 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 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