𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preparation, Structure and Reactivity of 2-Chloro-, 2-Fluoro- and 2-Iodo-2,3-dihydro-1H-1,3,2-diazaboroles

✍ Scribed by Lothar Weber; Eckhard Dobbert; Roland Boese; Michael T. Kirchner; Dieter Bläser

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
386 KB
Volume
1998
Category
Article
ISSN
1434-1948

No coin nor oath required. For personal study only.

✦ Synopsis

A series of differently substituted 2-chloro-, 2-fluoro-and 2-with BF 3 •OEt 2 , BCl 3 , or BI 3 in n-hexane. Compounds 3a, 5a, and 5b are also available by sodium amalgam reduction of iodo-2,3-dihydro-1H-1,3,2-diazaboroles have been prepared by various methods. 1,3-Di-tert-butyl-2-fluoro-2,3-dihydro-the adduct (tBu)(BF 3 )N=CH-CH=N(BF 3 )(tBu) (2a), and the borolium salts

was synthesized in a redox reaction between the 1,4-diazabutadiene 1b and BI 3 . The novel diazaborole (5c), and 1,3-di-tert-butyl-2-iodo-2,3-dihydro-1H-1,3,2-diazaborole (6a) were formed from the compounds were characterized by 1 H-, 11 B-and 13 C-NMR spectroscopy, as well as by an X-ray structure analysis of 6b. corresponding lithiated Z-1,2-diaminoethenes, by treatment WWW under http://www.wiley-vch.de/home/eurjic or from the author.

available. The first pathway [Scheme 1 (a)], involves the gen-

📜 SIMILAR VOLUMES

Chiral 2,3-Dihydro-1H-1,3,2-diazaboroles
Chiral 2,3-Dihydro-1H-1,3,2-diazaboroles
✍ Lothar Weber; Andreas Rausch; Henning B. Wartig; Hans-Georg Stammler; Beate Neum 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 193 KB 👁 1 views
Synthesis and Structure of 2-Hydro-, 2-A
Synthesis and Structure of 2-Hydro-, 2-Alkyl-, 2-Alkynyl-, and 2-Stannyl-2,3-dihydro-1H-1,3,2-diazaboroles
✍ Lothar Weber; Eckhard Dobbert; Hans-Georg Stammler; Beate Neumann; Roland Boese; 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 303 KB 👁 1 views

1,3,2-diazaborole (4a) and Similarly, 1,3-di-tert-butyl-2-trimethylstannyl-2,3-dihydro-1H-1,3,2-diazaborole (8a) and 1,3-bis(2,6-dimethylphenyl)-2-1,3-bis(2,6-dimethylphenyl)-2,3-dihydro-1H-1,3,2-diazaborole (4b) were formed by the reaction of the corresponding trimethylstannyl-2,3-dihydro-1H-1,3,2-

Synthesis and antimicrobialactivity of 2
Synthesis and antimicrobialactivity of 2-alkylcarbamato-2,3-dihydro-5-propylthio-1H-1,3,2-benzodiazaphosphole 2-oxides
✍ D. Srinivasulu; C. Devendranath Reddy; B. Sankar Reddy 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 81 KB 👁 1 views

3, were synthesized by cyclization of 4-propylthio-1,2-phenylenediamine ( 3) with the corresponding dichlorophosphoryl carbamates/thiocarbamates (2a-J) that were obtained by the addition of alcohols/thiols to isocyanatophosphoryl dichloride (1). The structures of the title compounds were confirme