Synthesis and properties of anti, anti-8,17-Epithia-1,6;10,15-bismethano[18]annulene-7,18-dione and its dicationic species

Autor:	Atsushi Fukuta, Shin-ya Kuramoto, Ichiro Shimao, Ryuta Miyatake, Mayumi Izawa, Yoshihiko Nozawa, Mitsunori Oda, Shigeyasu Kuroda, Yoshihiro Mizukami
Rok vydání:	1997
Předmět:	Chemistry Organic Chemistry Cationic polymerization chemistry.chemical_element Protonation Carbon-13 NMR Annulene Quinone Compound Biochemistry Medicinal chemistry Sulfur chemistry.chemical_compound Drug Discovery Methylene
Zdroj:	Tetrahedron Letters. 38:8291-8294
ISSN:	0040-4039
DOI:	10.1016/s0040-4039(97)10203-9
Popis:	The titled quinone compound has been synthesized, and the X-ray crystallographic analysis of this compound revealed that it has anti-anti-configuration for stereochemical relationship between two methylene and sulfur bridges. Its 1 H and 13 C NMR spectra in D 2 SO 4 indicate that the cationic species formed by protonation has localized positive charges on the carbony carbons, mainly due to the unfavorable p-orbital overlap.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b62a47ff212029bed09e69d3c555ba4 https://doi.org/10.1016/s0040-4039(97)10203-9 Zobrazit plný text záznamu Full Text from ScienceDirect