Detail of "13939-06-5"

Reference

Polymerization of phenylacetylenes

Polymerization of phenylacetylenes. Part 16. Polymerization of 1-bromo-2-phenylacetylene by molybdenum catalysts. Yamagata, Makoto; Masuda, Toshio; Higashimura, Toshinobu (Dep. Polym. Chem., Kyoto Univ., Kyoto 606, Japan). J. Polym. Sci., Polym. Chem. Ed., 22(9), 2275-9 (English) 1984. CODEN: JPLCAT. ISSN: 0449-296X. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) MoCl5-based catalysts and WCl6-based catalysts were evaluated in the polymn. of 1-bromo-2-phenylacetylene in PhMe at 30° for 24 h. When MoCl5 was used alone, the yield of MeOH-insol. polymer [91726-87-3] was ~40% and its mol. wt. was ￡3000. When Bu4Sn [1461-25-2], Ph4Sn [595-90-4], Et3SiH [617-86-7], or Ph3Bi [603-33-8] were added in 1:1 molar ratio with MoCl5, polymers with no.-av. mol. wt. 600-11,000 were obtained in >80% yield. The addn. of the cocatalysts to WCl6 increased polymer yield but the no.-av. mol. wt. were 2600-3000. The effects of solvent and temp. on the catalyzed polymn. were also detd. Polymn. in the presence of Mo(CO)6 [13939-06-5]-CCl4 or W(CO)6 [14040-11-0]-CCl4 indicated that catalyst selectivity was governed by central metal atom and not by the ligands (CO or CCl).

Oxidative desulfurization of residual oils

Oxidative desulfurization of residual oils.Some chemicals with cas registry numbers like 80-15-9 and 1310-73-2 are also used. Herbstman, Sheldon; Patel, Jitendra (Beacon Res. Lab., Texaco Inc., Beacon, NY 12508, USA). Prepr. - Am. Chem. Soc., Div. Pet. Chem., 27(4), 826-36 (English) 1982. CODEN: ACPCAT. ISSN: 0569-3799. DOCUMENT TYPE: Journal CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 48 To desulfurize a reduced crude petroleum (b. >288°; contg. 2.6 wt.% S), the cut was treated at 0° for 4 h with tert-BuOOH [75-91-2] or cumene hydroperoxide [80-15-9] in the presence of Mo(CO)6 [13939-06-5], vanadium acetonylacetate [13476-99-8], or titanium tetraoctanoate [28860-26-6] followed by thermal treatment at 388° for 4 h or treatment with 40 wt.% KOH at 343° for 1.5 h. S was 50-70% removed. .