Detail of "12148-71-9"

CAS Number:
12148-71-9
Name:
Iridium, bis[(1,2,5,6-h)-1,5-cyclooctadiene]di-m-methoxydi-
Superlist Name:
Bis(1,5-cyclooctadiene)dimethoxydiiridium
Molecular Structure:
Formula:
C18H30 Ir2 O2
Molecular Weight:
662.86
Synonyms:
Iridium,dimethoxybis(1,5-cyclooctadiene)di- (7CI); 1,5-Cyclooctadiene, iridium complex;Bis((1,5-cyclooctadiene)(m-methanolato)iridium); Bis(1,5-cyclooctadiene)-di-m-methoxodiiridium;Bis(1,5-cyclooctadiene)dimethoxydiiridium; Bis(cyclooctadiene(methoxy)iridium);Bis(h4-1,5-cyclooctadiene)-di-m-methoxodiiridium;Bis[(1,5-cyclooctadiene)(methanolato)iridium]; Di-m-methoxobis(1,5-cyclooctadiene)diiridium
Density:
g/cm³
Melting Point:
154-177 °C
Boiling Point:
°Cat760mmHg
Flash Point:
°C
Hazard Symbols:
Risk Codes:
36/37/38
Safety:
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26
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Hybrid P-N phosphines as participative ligands in iridium hydrogenation catalysts: Hybrid P-N phosphines as participative ligands in iridium hydrogenation catalysts. Farnetti, Erica; Nardin, Giorgio; Graziani, Mauro (Dip.Several substances are used for example 2344-70-9 and 12148-71-9 which are their cas registry numbers. Sci. Chim., Univ. Trieste, Trieste 34127, Italy). J. Organomet. Chem., 417(1-2), 163-72 (English) 1991. CODEN: JORCAI. ISSN: 0022-328X. DOCUMENT TYPE: Journal CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Section cross-reference(s): 29, 75 Iridium complexes formed in situ from [Ir(1,5-cyclooctadiene)(OMe)]2 and a potentially bidentate ligand such as P(o-C6H4NH2)Ph2 (P-NH2) or P(o-C6H4NMe)2Ph2 (P-NMe2) catalyze the chemoselective hydrogenation of benzylideneacetone. In the presence of HIr(P-NH)2(P-NH2) the substituted allylic alc. is obtained in 92% yield, whereas in the presence of H2Ir(P-NMeCH2)(P-NMe2) there is a much poorer selectivity. Catalysis features are discussed in relation to the nature of the iridium species formed; steric factors appear to play a crucial role in detg. the selectivity. Monitoring the progress of the reaction catalyzed by the Ir/P-NH2 system by NMR spectroscopy revealed the sequence of reactions, including ready intramol. N-H activation. The crystal structure of Ir(P-NH2)3 has been detd. .

Improvements of Efficiency and Regioselectivity in the Iridium(I)-Catalyzed Aromatic C-H Silylation of Arenes with Fluorodisilanes: All Rights Reserved. Improvements of Efficiency and Regioselectivity in the Iridium(I)-Catalyzed Aromatic C-H Silylation of Arenes with Fluorodisilanes. Saiki, Takeaki; Nishio, Yukihiro; Ishiyama, Tatsuo; Miyaura, Norio ( Division of Chemical Process Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan). Organometallics, 25(26), 6068-6073 (English) 2006 American Chemical Society.There are some reagents with their cas registry numbers 85575-94-6 and 12148-71-9 are used in this study. CODEN: ORGND7. ISSN: 0276-7333. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 25 The arom. C-H silylation of arenes (10 equiv) with 1,2-di-sec-butyl-1,1,2,2-tetrafluorodisilane was carried out in octane at 120 °C in the presence of a catalytic amt. of iridium(I) complex (3.0 mol %) generated from 1/2[Ir(OMe)(COD)]2 and 2,9-diisopropyl-1,10-phenanthroline. The reaction with various arenes resulted in the formation of corresponding arylfluorosilanes in high yields with excellent regioselectivities. .