New NLO Stilbene Derivatives Bearing Phosphonate Ester Electron-Withdrawing Groups

Autor:	K. J. Schafer, Chandrasekhar Chinna, Kevin D. Belfield
Rok vydání:	1997
Předmět:	chemistry.chemical_compound Chemistry Organic Chemistry Drug Discovery Polar effect Organic chemistry Aromaticity Biochemistry Medicinal chemistry Phosphonate Coupling reaction
Zdroj:	Tetrahedron Letters. 38:6131-6134
ISSN:	0040-4039
DOI:	10.1016/s0040-4039(97)01390-7
Popis:	The synthesis and characterization of a new class of electron donor-acceptor substituted stilbenes bearing a phosphonate ester as the electron-withdrawing functionality is described. Phosphorylation of aromatic rings was accomplished using Ni-catalyzed Arbuzov reactions, while Pd-catalyzed Heck-type coupling reactions were employed to construct the stilbene derivatives. Through determination of an electro-optic coefficient (r33), it was demonstrated that the phosphonate ester group is effective as an electron-withdrawing group for stilbene-based second-order NLO materials. © 1997 Elsevier Science Ltd.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cc0fada1fda50ce32ee208a1917ccbac https://doi.org/10.1016/s0040-4039(97)01390-7 Zobrazit plný text záznamu Full Text from ScienceDirect