N-Pyrrolyl Phosphines: Enhanced π-Acceptor Character via Carboalkoxy Substitution

Autor:	Steven P. Nolan, Adrian Huang, William J. Marshall, Scafford A. Serron, Kenneth Gene Moloy, Kate L. Mason, John E. Marcone
Rok vydání:	1997
Předmět:	Stereochemistry Organic Chemistry Substituent chemistry.chemical_element Infrared spectroscopy Acceptor Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry Fluorine Chlorine Moiety Reactivity (chemistry) Physical and Theoretical Chemistry Phosphine
Zdroj:	Organometallics. 16:3377-3380
ISSN:	1520-6041 0276-7333
DOI:	10.1021/om970129q
Popis:	A series of 3,4-dicarboethoxy-N-pyrrolyl phosphine ligands (R2P−NC4H2(CO2Et)2) is described. A number of techniques, including reaction calorimetry, infrared spectroscopy, and X-ray crystallography, demonstrate that these ligands are potent π-acceptors and that the electronic substituent parameter χi for the 3,4-(EtO2C)2C4H2N moiety is ca. 16, placing it in a position between fluorine and chlorine.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::79813f7b8b265c45f38e95395655b425 https://doi.org/10.1021/om970129q Zobrazit plný text záznamu