✦ LIBER ✦

Reaction of Sulfoximines with Diazomalonate in the Presence of Cu-salt. A New Synthesis and Stereochemistry of Optically Active Oxosulfonium Ylids

✍ Scribed by Naomichi Furukawa; Fujio Takahashi; Toshiaki Yoshimura; Shigeru Oae

Publisher: Elsevier Science
Year: 1977
Tongue: French
Weight: 224 KB
Volume: 18
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)83312-8

No coin nor oath required. For personal study only.

✦ Synopsis

In the course of the study on the chemistry of sulfoximine, we found that CHC13 decomposes violently when it is treated with NaOH in dimethyl sulfoximine. However when the decomposition was carried out in the presence of cyclohexene, 7,7-dichlorobicycloC4.l.Olheptane was obtained only in 5% yield with a concomitant decomposition of the sulfoximine. This observation suggests that dichlorocarbene is generated during the reaction, but consumed by a competing reaction with the sulfoximine thus lowering the yield of the carbene adduct. In order to clarify the reaction of carbenes with sulfoximines, a few typical sulfoximinesl) were treated with dimethyl diazomalonate(DDM) in the presence of Cu-salt as catalyst.

📜 SIMILAR VOLUMES

Reaction of sulphoximides with diazomalo

Reaction of sulphoximides with diazomalonate in the presence of Cu-salt : A new synthesis and stereochemistry of optically active oxosulphonium ylides

✍ N. Furukawa; F. Takahashi; T. Yoshimura; S. Oae 📂 Article 📅 1979 🏛 Elsevier Science 🌐 French ⚖ 534 KB

New Method of Synthesis of β-Haloalkyl A

New Method of Synthesis of β-Haloalkyl Alkynyl Sulfides: Reaction of Alkynesulfenamides with Olefins in the Presence of Phosphoryl Halides.

✍ E. K. Beloglazkina; M. A. Belova; N. S. Dubinina; I. A. Garkusha; A. K. Buryak; 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 24 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Reaction of Selenium with Bromine (Se:Br

Reaction of Selenium with Bromine (Se:Br = 1:1) in Acetonitrile in the Presence of Tetramethylammonium Bromide: Synthesis and Crystal Structure of [(CH3)4N]2[Se16Br18], the Salt of a Unique Bromoselenate(I) Anion

✍ Vitalijus Janickis; Karl Wilhelm Törnroos; Max Herberhold; Jon Songstad; Wolfgan 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 German ⚖ 154 KB 👁 2 views

Reaction of Selenium with Bromine (Se:Br

✍ Vitalijus Janickis; Karl Wilhelm Toernroos; Max Herberhold; Jon Songstad; Wolfga 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 2 views

Pentacoordination in Group 15 ‘onium sal

Pentacoordination in Group 15 ‘onium salts. A room-temperature synthesis of an intramolecularly pentacoordinated tetraarylstibonium salt containing the new polyiodocuprate anion [Cu14I18]4−, and a structural comparison with related pentacoordinated arsonium and phosphonium cations

✍ David W Allen; Thomas Gelbrich; Michael B Hursthouse 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 203 KB

Intramolecularly pentacoordinated tetraarylstibonium salts have been obtained at room temperature from the reactions of ortho-iodoarylimino coordination template systems with triarylstibines and copper(I) iodide in acetonitrile, the related bromo-and chloro-arenes being unreactive under these condit

ChemInform Abstract: A New Method for Sy

ChemInform Abstract: A New Method for Synthesis of Alkylidene Sulfones via Direct Alkylidenating Reaction of Ketones with gem-Dibromomethyl Sulfones Promoted by the Sm/SmI2 System in the Presence of a Catalytic Amount of CrCl3.

✍ Yunkui Liu; Huayue Wu; Yongmin Zhang 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 2 views