Wong, Wai-Yeung published the artcileSynthesis and characterization of new oligoacetylenic silanes, Formula: C18H10, the publication is New Journal of Chemistry (2002), 26(3), 354-360, database is CAplus.
Synthetic routes to a series of novel oligoacetylenic silanes with or without (hetero)aromatic bridges have been developed. The compound Me3SiC顚咰Si(Ph)2C顚咰SiMe3 was first prepared, which was selectively desilylated with CaCO3 in methanol at room temperature to afford the mono-protected bis(alkynyl)silane Me3SiC顚咰Si(Ph)2C顚咰H in moderate yield. Treatment of this mono-protected species with nBuLi, followed by silylation with Ph2SiCl2, gives a good yield of Me3SiC顚咰Si(Ph)2C顚咰Si(Ph)2C顚咰Si(Ph)2C顚咰SiMe3, with alternating silicon and acetylene units. A range of linear silicon-linked oligoalkynes containing phenylene, bithienylene and anthrylene rings, HC顚咰RC顚咰Si(Ph)2C顚咰RC顚咰H and HC顚咰RC顚咰Si(Ph)2C顚咰RC顚咰Si(Ph)2C顚咰RC顚咰H (R = 1,4-phenylene, 5,5′-bithienylene or 9,10-anthrylene), were synthesized by condensation reactions of Ph2SiCl2 with the components obtained in situ from a HC顚咰RC顚咰H-nBuLi mixture in THF and the products were isolated by chromatog. on silica. All these new compounds have been characterized by IR, 1H and 13C NMR and UV/VIS spectroscopies and mass spectrometry. The single-crystal x-ray structure of HC顚咰(p-C6H4)C顚咰Si(Ph)2C顚咰(p-C6H4)C顚咰Si(Ph)2C顚咰(p-C6H4)C顚咰H has been determined, showing that two silicon atoms and six acetylene units constitute the backbone of the mol.
New Journal of 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 C19H14FN3O3S, Formula: C18H10.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem