SYNTHESIS OF METAL- AND PENTEL-CONTAINING HETEROCYCLES USING NITRILES AND ISONITRILES |
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| Authors: | Effat Iravani Bernhard Neumüller |
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| Institution: | Philipps-Universit?t Marburg , Marburg, Germany |
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| Abstract: | The reaction of benzylnitrile with InMe 3 in a molar ratio of 3:1 leads to 2-amino-N-Me 2 In(TMEDA)]-4-amino-3,5-diphenyl-6-benzyl-pyridine 2. CsF accelerates the reaction. The treatment of Ph 2 CHCN with InMe 3 in the presence of CsF gives the metalated ketenimine (THF)Me 2 InNCCPh 2 ] 2 3. 3 and the corresponding Ga compound also can be obtained by the metathesis reaction of Me 2 MCl with LiNu═C═CPh 2 . The attack of the Lewis bases t BuELi 2 (E = P, As) on nitriles and isonitriles also leads to oligomerizations. t BuAsLi 2 reacts with two molecules of PhCN to the aromatic heterocycle AsNC(Ph)NC(Ph)]? by forming the salt Li(diglyme) 2 ] (TMEDA)Li(AsNC(Ph)NC(Ph)]) 2 ] 4, while the reaction of t BuAsLi 2 with three equivalents of c HexNC leads to the dilithium compound {Li 2 (diglyme)} 2 { t BuAs(CN c Hex) 3 } 2 ] 5. Six molecules c HexNC were consumed when Li 2 P t Bu was added to the isonitrile to give {Li(DME)} 2 { t BuP(CN c Hex) 5 (CH)}] 6. |
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| Keywords: | Gallium compounds indium compounds isonitriles ketenimines nitriles |
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