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Cyanide Source (cyanide + source)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

One-Pot Synthesis of 5-Substituted 1H -Tetrazoles from Aryl Bromides with Potassium Hexakis(cyano- ,C)ferrate(4,) (K4[Fe(CN)6]) as Cyanide Source

HELVETICA CHIMICA ACTA, Issue 1 2009
Yizhong Zhu
Abstract A one-pot procedure for the synthesis of 5-substituted 1H -tetrazoles through the three-component reaction between an aryl bromide, potassium hexakis(cyano- ,C)ferrate(4,) (K4[Fe(CN)6]) and NaN3 catalyzed by [Pd(OAc)2] and ZnBr2 in the presence of 1,4-diazabicyclo[2.2.2]octane (dabco) was developed. Furthermore, the reaction occurred under nonacidic conditions and involved a nontoxic cyanide source, making this method a quite attractive one. [source]

A Remarkable Titanium-Catalyzed Asymmetric Strecker Reaction using Hydrogen Cyanide at Room Temperature

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 13 2010
Balamurugan Ramalingam
Abstract Close to perfect enantioselectivity (up to 98% ee) is obtained for the formation of amino nitriles using hydrogen cyanide (HCN) as the cyanide source at room temperature for the first time. In an operationally simple process, the catalyst generated from a partially hydrolyzed titanium alkoxide (PHTA) and (S)- N -salicyl-,-amino alcohol ligand, catalyzes the cyanation of imines in a short reaction time. [source]

Palladium-catalyzed cyanation reaction of aryl halides using K4[Fe(CN)6] as non-toxic source of cyanide under microwave irradiation

APPLIED ORGANOMETALLIC CHEMISTRY, Issue 6 2010
Abdol R. Hajipour
Abstract An efficient method for preparation of aryl nitriles,using [Pd{C6H2(CH2CH2 NH2)-(OMe)2,3,4} (µ-Br)]2 complex as an efficient catalyst and K4[Fe(CN)6] as a green cyanide source,from aryl bromides, aryl iodides and aryl chlorides under microwave irradiation has been reported. This complex has been demonstrated to be an active and efficient catalyst for this reaction. Using a catalytic amount of this synthesized palladium complex in DMF at 130 °C led to production of the cyanoarenes in excellent yields in short reaction times. Copyright © 2010 John Wiley & Sons, Ltd. [source]