Detail of "1779-51-7"

CAS Number:
1779-51-7
Name:
Phosphonium,butyltriphenyl-, bromide (1:1)
Superlist Name:
Butyltriphenylphosphonium bromide
Molecular Structure:
Formula:
C₂₂H₂₄BrP
Molecular Weight:
399.31
Synonyms:
Butyltriphenylphosphoniumbromide (6CI);Phosphonium, butyltriphenyl-, bromide (7CI,8CI,9CI);BTPPBr;Hishicolin BTPPBr;NSC 59684;Triphenylbutylphosphonium bromide;n-Butyltriphenylphosphonium bromide;phosphonium, butyltriphenyl-, bromide (1:1);
EINECS:
217-219-4
Melting Point:
240-243 °C(lit.)
Solubility:
soluble in water
Appearance:
white crystalline powder
Hazard Symbols:
Xn
Risk Codes:
21/22-36/37/38
Safety:
36/37/39-26 Details
particular:
particular

Branched thermoplastic polymers with increased resistance to melting: Branched thermoplastic polymers with increased resistance to melting. Thomas, Norman William (Celanese Corp., USA). Ger. Offen. DE 2655457 7 Jul 1977, 28 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08G063-76. PRIORITY: US 75-644276 24 Dec 1975. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) Treatment of polyesters with epoxy branching agents in the presence of alkyltriphenylphosphonium halide catalysts produces colorless products which are less friable and have a higher melt index than similar products prepd. using amine catalysts. Thus, 49.5 g poly(butylene terephthalate) [24968-12-5] contg. 70 microequiv. CO2H endgroups/g polymer was heated to 250.degree. in a Brabender plostograph and the molten polymer was mixed with 0.5 g bisphenol A diglycidyl ether [1675-54-3] and 0.011 g butyltriphenylphosphonium bromide [1779-51-7]. After 4 min the compn. was cooled to give a white modified polymer having CO2H endgroup content 8 microequiv./g, intrinsic viscosity 1.52, and melt index 1.52 at .apprx.235.degree..

Alkanols and esters from synthesis gas: Alkanols and esters from synthesis gas. Lin, Jiang Jen (Texaco Inc. , USA). U.S. US 4436838 A 13 Mar 1984, 8 pp. (English). (United States of America).There are some reagents with their cas registry numbers 10210-68-1 and 1271-19-8 are used in this study. CODEN: USXXAM. CLASS: IC: C07C027-06; C07C029-15. NCL: 518700000. APPLICATION: US 82-427334 29 Sep 1982. DOCUMENT TYPE: Patent CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) Section cross-reference(s): 67 Synthesis gas (1-2:1 H-CO) is converted to mainly C1-3 alcs. and C1-3 acetates at 220° and 4000-6300 psi in the presence of 1,4-dioxane [123-91-1], a phosphonium bromide (Bu4PBr [3115-68-2], BuPh3PBr [1779-51-7], or n-C7H15Ph3PBr [13423-48-8]), a Ru carbonyl catalyst (prepd. by addn. of RuO2), and an organometallic cocatalyst [HCpZrCl2 [90310-34-2], Cp2ZrCl2 [1291-32-3], Zr(acetylacetonate)4 [17501-44-9], Cp2TiCl2 [1271-19-8] + Co2(CO)8, or Cp2ZrCl2 + Co2(CO)8 (Cp is h5-C5H5)]. Relative selectivity to C1-3 acetates and the MeOH [67-56-1]-EtOH [64-17-5] selectivity ratio are 4-44% and 1-1.4:1-5.3, resp. .