Efficient palladium-catalyzed synthesis of unsymmetrical donor-acceptor biaryls and polyaryls was written by Amatore, Christian;Jutand, Anny;Negri, Serge;Fauvarque, Jean Francois. And the article was included in Journal of Organometallic Chemistry in 1990.Recommanded Product: N,N-Diethyl-4-iodobenzamide This article mentions the following:
4,4′-Unsym. substituted biphenyls were synthesized by cross-coupling reactions of substituted aromatic organometallic reagents and aromatic halides catalyzed by palladium complexes. This two-step method from com. available aromatic halides was used for the synthesis of a series of donor/acceptor para-substituted biphenyls, RC6H4C6H4R1 (R = electron donor group, R1 = electron acceptor group), which are of interest as liquid crystal precursors and as having potential in nonlinear optics. Thus, 4-Me2NC6H4ZnCl reacted with 4-BrC6H4CN to give 78% 4-Me2NC6H4C6H4CN-4′. Biaryls (e.g., I, X = O, S) in which the donor-Ph moiety is replaced by 2-furyl or 2-thienyl were synthesized similarly. The method was also used for the convergent synthesis of previously unreported unsym. substituted polyparaphenylenes 4-R(C6H4)nCN (R = Br, Me2N, MeS; n = 3, 4). In the experiment, the researchers used many compounds, for example, N,N-Diethyl-4-iodobenzamide (cas: 77350-52-8Recommanded Product: N,N-Diethyl-4-iodobenzamide).
N,N-Diethyl-4-iodobenzamide (cas: 77350-52-8) belongs to iodide derivatives. Organoiodine compounds occur widely in organic chemistry, but are relatively rare in nature. The C–I bond is the weakest of the carbon–halogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I. This periodic order also follows the atomic radius of halogens and the length of the carbon-halogen bond.Recommanded Product: N,N-Diethyl-4-iodobenzamide
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com