Detail of "2132-62-9"

CAS Number:
2132-62-9
Name:
Benzene,1,1'-(1,2-ethynediyl)bis[4-methoxy-
Superlist Name:
Lincomycin 2,7-diacetate
Molecular Structure:
Formula:
C16H14 O2
Molecular Weight:
490.61
Synonyms:
Acetylene,bis(p-methoxyphenyl)- (6CI,7CI,8CI); 1,2-(4-Methoxyphenyl)acetylene;1,2-Bis(4-methoxyphenyl)acetylene; 1,2-Bis(4-methoxyphenyl)ethyne;1,2-Bis(p-anisyl)acetylene; 1,2-Di(4-methoxyphenyl)acetylene;4,4'-Dimethoxydiphenylacetylene; 4,4'-Dimethoxytolan;Bis(4-methoxyphenyl)acetylene; Bis(p-methoxyphenyl)acetylene;Di(p-methoxyphenyl)acetylene; Di-4-methoxyphenylacetylene;Di-p-anisylacetylene; p,p'-Dimethoxydiphenylacetylene
Melting Point:
143

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Tandem Sonogashira coupling: An efficient tool for the synthesis of diarylalkynes: Tandem Sonogashira coupling: An efficient tool for the synthesis of diarylalkynes. Novak, Zoltan; Nemes, Peter; Kotschy, Andras (Department of General and Inorganic Chemistry, Eotvos Lorand University, Budapest H-1117, Hung.). Organic Letters, 6(26), 4917-4920 (English) 2004 American Chemical Society. CODEN: ORLEF7. ISSN: 1523-7060. DOCUMENT TYPE: Journal CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) The tandem Sonogashira coupling reaction of aryl halides provided an efficient method for the synthesis of diarylalkynes, e.g., I. Several aryl halides were coupled with 2-methyl-3-butyn-2-ol as acetylene source in the presence of PdCl2(PPh3)2 and CuI. Following the deprotection of the acetylene moiety in the same pot using a strong base, the Sonogashira coupling of a second aryl halide led to the formation of the appropriate diarylalkyne. The established protocol was successfully extended to the prepn.In this experiment, several chemicals are used like 478501-26-7 and 2132-62-9 of compd. libraries. .

New highly active supported palladium-containing catalysts of the selective hydrogenation of acetylenic compounds to olefins: New highly active supported palladium-containing catalysts of the selective hydrogenation of acetylenic compounds to olefins. Frolov, V. M.; Parenago, O. P.; Kovaleva, L. S.; Mirskaya, E. Ya.; El'natanova, A. I. (Inst. Neftekhim. Sint. im. Topchieva, Moscow, USSR). Neftekhimiya, 24(6), 783-9 (Russian) 1984. CODEN: NEFTAH. ISSN: 0028-2421. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) Section cross-reference(s): 22, 67 PdCl2 supported on zeolites, aluminosilicate AF-9, g-Al2O3 or silica gel KSK treated with R3N (R = hexyl, octyl, nonyl) catalyzed the title reaction of C6-C22 n-alkynes, tolan, EtOCHMeO(CH2)4CYCBu, (MeO)2CH(CH2)9CYCEt and p,p'-dimethoxytolan at 20° and 0.1 MPa H with 100% selectivity. Hydrogenation was zero-order in substrate, with activation energy 6.7 kcal/mol. The catalyst activity was stable to ￡200° and to excess H2O vapor, Ph3P and thiophene.Except for chemicals metioned above, 2132-62-9 is also used. 2132-62-9 is just another one chemical used in this study. ..