3 [citation needed] Recently a simple procedure for the preparation of alkyl and alkenyl iodides in good yields using boron triiodide-N,N-diethylaniline complex … [2] Its dielectric constant is 5.38 and its heat of vaporization is 40.5 kJ/mol. US3026356A US730814A US73081458A US3026356A US 3026356 A US3026356 A US 3026356A US 730814 A US730814 A US 730814A US 73081458 A US73081458 A US 73081458A US 3026356 A US3026356 A US 3026356A Authority US United States Prior art keywords boron hydride employed reaction metal Prior art date 1958-04-25 Legal status (The legal status is an assumption and is not a … Reduction of sulfonic acids and sulfonyl derivatives to disulfides with iodide in the presence of boron halides. A yield of 60 pct based on iodine is found for this method. A. G. Briggs. References ^ 3 Preparative Methods: BI 3 of extremely high purity can be prepared in 25% yield by treating I 2 in heptane at 80 °C with KBH 4 (which has been recrystallized from H 2 O). George A. Olah, Subhash C. Narang, Leslie D. Field, and ; Richard Karpeles 3 Synthetic methods and reactions. 3 ⟶ Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan *E-mail: [email protected] HI Preparation. In Part I are described the preparation of high-purity boron trichloride by chlorination, at 700–900°C, of a carbon-boric acid sinter and the subsequent purification of the boron trichloride by simple fractionation in a cold-room. HI Except where otherwise noted, data are given for materials in their, http://www.sciencemadness.org/talk/files.php?pid=110072&aid=4171, https://en.wikipedia.org/w/index.php?title=Boron_triiodide&oldid=914052068, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from November 2014, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 September 2019, at 21:11. US2469879A US623858A US62385845A US2469879A US 2469879 A US2469879 A US 2469879A US 623858 A US623858 A US 623858A US 62385845 A US62385845 A US 62385845A US 2469879 A US2469879 A US 2469879A Authority US United States Prior art keywords boron reaction hydrogen aluminum chloride Prior art date 1945-10-22 Legal status (The legal status is an assumption and is … [ citation needed ] It can also be prepared by this other method: 3 HI + BCl 3 BI 3 + 3 HCl {\displaystyle {\ce {{3HI}+ BCl3 -> {BI3}+ 3HCl}}} (this reaction requires high temperature). Hazard classification & labelling Hazard classification and labelling. Boron triiodide could be used as pharmaceutical, chemical and organic intermediate. 3Li[BH4] + 8I2 = 3LiI + 3BI3 + 4H2 + 4HI (boiling in hexane). HOAc23or HCl-pyridine24) or Lewis acids (boron, silicon and metal halides). Methods for preparation of boron triiodide: 2B + 3E2 = 2BE3 (30° C, E = F; above 400° C, E = Cl, Br, I). Identifiers ; CAS Number. The boron triiodide-N,N-diethylaniline complex, generated in situ from borane:N,N-diethylaniline and iodine cleaves ethers and regenerates carbox-aldehydes from the corresponding geminal diacetate derivatives under mild conditions in good yields.. 9. 238000002360 preparation methods Methods 0.000 title claims description 5 150000001639 boron compounds Chemical class 0.000 title description 2 239000001257 hydrogen It is also useful as a catalyst and for the preparation of complex boron compounds. Methods for preparation of boron triiodide: 2B + 3E2 = 2BE3 (30° C, E = F; above 400° C, E = Cl, Br, I). It can also be prepared by this other method: The final method is based on solid-state metathesis, in which boron triiodide reacts with phosphorus to form BP and phosphorus iodide byproducts. AlI 3 showed an inversed regioselectivity in ether cleavage compared to boron and silicon halides when a dialkyl ether group and an alkyl aryl ether group coexisted in a substrate. BCl This paper. (this reaction requires high temperature). [13517‐10‐7] BI 3 (MW 391.52) (strong Lewis acid with labile, nucleophilic iodine atoms; cleaves ethers, 2 esters, 3 silanes, 4 halides, 5 and alcohols to alkyl iodides; reductively cleaves sulfonyl 6 and sulfinyl 7 groups to disulfides) Physical Data: mp 50.5 °C; d 3.350 g cm −3. values of group 13 elements are lower than the corresponding values of the alkaline earth metals, due to the fact that removal of electron is easy in former case (p-electron) than latter (s-electron). Hydrolysis. References ↑ [2] Its dielectric constant is 5.38 and its heat of vaporization is 40.5 kJ/mol. Boron triiodide can be prepared by the reaction of boron with iodine at 209.5 °C or 409.1 °F. It is also used as a catalyst and for preparation of boron compounds. 1974. Chemical reactions with boron triiodide: 2BI3 = 2B + 3I2 (above 700° C or in the light). Preparation of high purity boron . Boron triiodide is a chemical compound of boron and iodine with chemical formula BI3. 1. {\displaystyle {\ce {{3HI}+ BCl3 -> {BI3}+ 3HCl}}} A thick layer of pure boron nitride (BN) nanowires with a uniform diameter of 20 nm was synthesized for the first time using a CVD process with a new precursor of boron triiodide (BI3). Journal of the Less-Common Metals, 58 (1978) 123-131 123 Eisevier Sequoia S.A., Lausanne Printed in the Netherlands DIRECT SYNTHESIS OF BORON TRIIODIDE AND THE CHEMICAL TRANSPORT OF BORON WITH IODINE J. CUEILLERON and J. C. VIALA Laboratoire de Physico-Chimie Minale, Associau C.N.R.S., 43 Boulevard du 11 Novembre 1918, 69621 Villeurbanne (France) … HCl BI3 + 3H2O = B (OH)3↓ + 3HI. Boron triiodide is used as pharmaceutical, chemical and organic intermediate. Affiliations. ⟶ HCl It is also useful as a catalyst and for the preparation of complex boron compounds. A short summary of … Boron trifluoride reacts with water to give boric acid and fluoroboric acid. {\displaystyle {\ce { {3HI}+ BCl3 -> {BI3}+ 3HCl}}} (this reaction requires high temperature). Boron triiodide is a chemical compound of boron and iodine with chemical formula BI3. Download Full PDF Package. Department of Chemistry, Loughborough University, LE11 3TU, Loughborough, Leicestershire, UK. It is also used as a catalyst and for preparation of boron compounds. Michael Denniston. Reactant for preparation of: • Drug intermediate 6-nitro-L-DOPA • Luminescent polystyrene derivatives with sterically protected carbazolylborane moieties • High-quality boron-doped graphene via Wurtz-type reductive coupling reaction Molbase Encyclopedia provides Boron triiodide (13517-10-7) basic information, physical and chemical properties, safety information, toxicity, customs data, synthetic routes, maps, MSDS, generation methods and uses, and its upstream and downstream products, find Boron triiodide … It has a trigonal planar molecular geometry. Boron triiodide can be prepared by the reaction of boron with iodine at 209.5 °C or 409.1 °F. 13517-10-7 Revision Date New Jersey Right To Know Components Boron triiodide CAS-No. Boron triiodide is used as pharmaceutical, chemical and organic intermediate. It can also be obtained by treating boron trioxide with carbon and fluorine. Read this book using Google Play Books app on your PC, android, iOS devices. The Preparation of High-purity Boron Via the Iodide - Ebook written by A. F. Armington. (this reaction requires high temperature). It has a trigonal planar molecular geometry. Boron triiodide is the most unstable and therefore can be thermally decomposed easily. + The first I.E. Masatoshi Shibuya* Masatoshi Shibuya. [13517‐10‐7] BI 3 (MW 391.52) InChI = 1S/BI3/c2‐1(3)4 InChIKey = YMEKEHSRPZAOGO‐UHFFFAOYSA‐N (strong Lewis acid with labile, nucleophilic iodine atoms; cleaves ethers, 2 esters, 3 silanes, 4 halides, 5 and alcohols to alkyl iodides; reductively cleaves sulfonyl 6 and sulfinyl 7 groups to disulfides) Physical Data: mp 50.5 °C; d 3.350 g cm −3. + Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan *E-mail: [email protected] Boron triiodide; Names ; IUPAC name. Boron triiodide can be prepared by the reaction of boron with iodine at 209.5 °C or 409.1 °F. Preparation. The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. It is a crystalline solid, which reacts vigorously with water to form hydroiodic acid and boric acid. separating the precipitated silica from the reaction mixture, B2O3 + 3C + 3F2 → 2BF3 + 3CO. PREPARATION AND LEWIS ACID PROPERTIES OF DIBORON TETRAFLUORIDE AND RELATED COMPOUNDS INTRODUCTION Knowledge of the chemistry of boron has increased rapidly in recent years as a large number of boron compounds have been syn- thesized and investigated.However, only a few compounds are known that contain covalent boron -boron bonds, and not much information 1. The preparation of some new boron trihalide addition compounds with trimethylarsine and trimethylstibine. 101. Preparation: Boron trifuloride is obtained by the treatment of calcium fluoride with boron trioxide in presence of conc. (1958), who had found red boron crystals in the deposit formed under the pyrolysis of boron triiodide. United States Patent 5013604 ... Boron tribromide or triiodide, and boron hydrides (from diborane to decaborane) have been decomposed on a wide variety of substrates ranging from glass to tungsten at temperatures from 800°-1500° C." The reaction commences with the formation of the aquo adduct, H 2 O−BF 3, which then loses HF that gives fluoroboric acid with boron trifluoride. [citation needed] It can also be prepared by this other method: 3 HI + BCl3 --> BI3 + 3 HCl (this reaction requires high temperature). Boron triiodide could be used as pharmaceutical, chemical and organic intermediate. Aldrich-307629; Boron triiodide 0.95; CAS Number: 13517-10-7; Linear Formula: BI3; find related products, papers, technical documents, MSDS & more at Sigma-Aldrich. {\displaystyle {\ce {{3HI}+ BCl3 -> {BI3}+ 3HCl}}}