Cavazza, Claudia published the artcileSynthesis and Electrochemical Characterization of Halide, Isocyanide, and Alkynyl Synthons Containing the Encumbered Triangular Cluster Unit Pt3(μ-PtBu2)3, HPLC of Formula: 18512-55-5, the publication is Inorganic Chemistry (2009), 48(4), 1385-1397, database is CAplus and MEDLINE.
Useful synthons containing the tri-bridged triangular unit {Pt3} = [Pt3(μ-PtBu2)3]+ were prepared starting from the known tricarbonyl derivative [{Pt3}(CO)3]Z, [(1+)Z, Z = CF3SO3–]. This was easily converted into the monohalides {Pt3}(CO)2X [2, X = Cl; 3, X = Br; 4, X = iodo], by reaction with the appropriate halide salt. The coupling reaction between 2 and terminal alkynes in the presence of CuI afforded in good yields the σ-alkynyl derivatives {Pt3}(CO)2(CC-R) [6, R = SiMe3; 7, R = CC-SiMe3; 8, R = C6H5; 9, R = C6H4Br-4; 10, R = C6H4CCH-4; 11, R = 2-C4H2SCCH-5; 12, R = 9-C14H8CCH-10], while desilylation of 6 or 7 with TBAF/THF gave, resp., the derivatives 13 (R = H) and 14 (R = CCH). The stepwise elongation of the arylalkynyl chain was obtained by the Sonogashira coupling of 10 with an excess of 1,4-diiodobenzene, which produced 15 (R = C6H4-4-CC-C6H4-4-I), and by coupling the latter with an excess of 1,4-diethynylbenzene, which formed 16 (R = [C6H4CC-4]3H). Branched synthons were obtained by substitution of the carbonyl ligands with functional isocyanides; the reaction of an excess of CN-C6H4-4-R (R = I, CCH) with {Pt3}(CO)2H, 5, or with complex (1+)Z afforded, resp., {Pt3}(CN-C6H4-4-I)2H, 17, or [{Pt3}(CN-C6H4-4-R)3]Z [(18+)Z, R = I; (19+)Z, R = CCH]. The crystal structures of complexes 2, 8, and 9 were established by x-ray diffraction studies. The electrochem. characterization of representative examples of the clusters prepared in this work shows that all clusters were characterized by the presence of two oxidations; an anal. of ligands’ effects on the redox processes is also included.
Inorganic Chemistry published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, HPLC of Formula: 18512-55-5.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem