✦ LIBER ✦

ChemInform Abstract: Addition of Grignard and Organolithium Reagents to the Negatively Charged Sulfur Atom of 2,2-Bis(diethylamino)ethan-2-ylium-1-dithioate.

✍ Scribed by J. NAKAYAMA; T. OTANI; Y. SUGIHARA; A. ISHII

Publisher: John Wiley and Sons
Year: 2010
Weight: 31 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199834059

No coin nor oath required. For personal study only.

✦ Synopsis

Addition of Grignard and Organolithium Reagents to the Negatively Charged Sulfur Atom of 2,2-Bis(diethylamino)ethan-2-ylium-1dithioate.

-A range of organometal nucleophiles add to the negatively charged sulfur atom of the title betaine (I) despite the presence of the positively charged carbenium ion center. In situ methylation of the enethiolates thus formed provides dithioacetals in excellent yields. A mechanism involving a single-electron transfer process from nucleophiles to (I) is presented for this thiophilic addition. -(NAKAYAMA,

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis of 1,2-Di

ChemInform Abstract: Synthesis of 1,2-Disubstituted Naphthalenes and Tetrahydronaphthalenes from Dihydronaphthalenes Obtained by Conjugate Addition of Organolithium Reagents to 2,6-Bis(tert-butyl)-4-methoxyphenyl Naphthalenecarboxylates.

✍ Mitsuru Shindo; Kenji Koga; Kiyoshi Tomioka 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

ChemInform Abstract: Regioselective Addi

ChemInform Abstract: Regioselective Addition of Grignard Reagents to New Lipophilic Isoquinolinium Salts Applied to the Synthesis of Stable Ethyl 1,2-Disubstituted 1,2-Dihydroisoquinoline-3-carboxylates and Derivatives.

✍ Mohamed Ait Amer Meziane; Jean Pierre Bazureau 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB

ChemInform Abstract: Highly Diastereosel

ChemInform Abstract: Highly Diastereoselective Addition of Grignard Reagents to Aliphatic, Enolizable N-Alkylketimines and 2,2-Disubstituted 1,3-Oxazolidines. Asymmetric Synthesis of the Antidepressant Cericlamine.

✍ Arno G. Steinig; Denice M. Spero 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 37 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: Regioselectivity, S

ChemInform Abstract: Regioselectivity, Scope, and Limitations of the Addition of Organolithium and Allylmagnesium Reagents to 1H-Pyridine-2-thiones; Access to 3,4-, 3,6-, and 5,6-Dihydropyridine-2-thiones.

✍ Jacek G. Sosnicki 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 60 KB

ChemInform Abstract: 1-(Chloromethyl)-4-

ChemInform Abstract: 1-(Chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2,2,2]octane Bis(tetrafluoroborate) as Novel and Efficient Reagent for the Conjugate Addition of Indoles to α,β-Unsaturated Ketones.

✍ J. S. Yadav; B. V. Subba Reddy; K. Ravindar; Gakul Baishya 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 40 KB 👁 1 views

ChemInform Abstract: Asymmetric Synthesi

ChemInform Abstract: Asymmetric Synthesis of 1,2-Diamines by the Addition of Allylic Zinc and Magnesium Reagents to N,N′-Bis[(S)-1-phenylethyl]ethanediimine.

✍ Giuseppe Alvaro; Fabrizia Grepioni; Stefano Grilli; Lucia Maini; Gianluca Martel 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 40 KB 👁 2 views