Aminomethylation of Aminoferrocene, (?(5)-C5H5)Fe(?(5)-C5H4NH2),and (Anilino)chromiumtricarbonyl, (?(6)-C6H5NH2)Cr(CO)(3), byO-Triethylsilyl-hemiaminal, (Et3SiOCH2NMe2): The Role of DisparateOrganometallic Electronic Effects in Modifying Product Outcomes

Sharma Hemant K.; Metta-Magana Alejandro J.; Pannell Keith H.

首页> 外文期刊>Organometallics >Aminomethylation of Aminoferrocene, (?(5)-C5H5)Fe(?(5)-C5H4NH2),and (Anilino)chromiumtricarbonyl, (?(6)-C6H5NH2)Cr(CO)(3), byO-Triethylsilyl-hemiaminal, (Et3SiOCH2NMe2): The Role of DisparateOrganometallic Electronic Effects in Modifying Product Outcomes

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Aminomethylation of Aminoferrocene, (?(5)-C5H5)Fe(?(5)-C5H4NH2),and (Anilino)chromiumtricarbonyl, (?(6)-C6H5NH2)Cr(CO)(3), byO-Triethylsilyl-hemiaminal, (Et3SiOCH2NMe2): The Role of DisparateOrganometallic Electronic Effects in Modifying Product Outcomes

机译：Aminomethylation of Aminoferrocene, (?(5)-C5H5)Fe(?(5)-C5H4NH2),and (Anilino)chromiumtricarbonyl, (?(6)-C6H5NH2)Cr(CO)(3), byO-Triethylsilyl-hemiaminal, (Et3SiOCH2NMe2): The Role of DisparateOrganometallic Electronic Effects in Modifying Product Outcomes

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The room-temperature reaction ofO-triethylsilyl-hemi-aminal, Et3SiOCH2NMe2,(1) with primary amines containing organo-metallic electron-donating ferrocenyl or electron-withdrawing arenechro-miumtricarbonyl groups, Fc-NH2{Fc = [(eta 5-C5H5)Fe(eta 5-C5H4)] (2) and[(eta 6-C6H5NH2)Cr(CO)3](3), respectively}, led to separate anddistinctive chemistry. The reaction between1and2initially producedthe transient triamine FcN(CH2NMe2)2(4), which transformed uponworkup into 1,3,5-triferrocenyl-1,3,5-hexahydrotriazine (5). The reactionbetween1and3led to the isolation of the diamine[(C6H5NHCH2NMe2)Cr(CO)3](7) as the only product. The complexes5and7are stable materials and were readilycharacterized spectroscopically and structurally. The labile ferrocenyltriamine4was readily trapped by complexation with Mo(CO)4{presented as [(norbornadiene)Mo(CO)4]} to form [FcN(CH2(NMe2)2]Mo(CO)4(6), coordinating the Mo atom in a bidentatemannerviathe terminal NMe2groups. The Me2NCH2group in7readily exchanged upon reaction with either Et2NH orEt2NCH2NEt2to yield the diamine [(eta 6-C6H5NHCH2NEt2)Cr(CO)3](8). The initial cyclic voltammetric analysis exhibitedoxidation of each separate metal center in both5and6.

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来源
《Organometallics》 |2022年第8期|977-983|共7页
作者
Sharma Hemant K.; Metta-Magana Alejandro J.; Pannell Keith H.;
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作者单位

Univ Texas El Paso;

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正文语种英语
中图分类元素有机化合物;
关键词
CATALYZED REDUCTION; TERTIARY AMIDES; CHEMOSELECTIVE REDUCTION; SELF-ENCAPSULATION; SECONDARY AMIDES; AMINES; HYDROSILYLATION; COMPLEXES; MECHANISM; SILANES;

Aminomethylation of Aminoferrocene, (?(5)-C5H5)Fe(?(5)-C5H4NH2),and (Anilino)chromiumtricarbonyl, (?(6)-C6H5NH2)Cr(CO)(3), byO-Triethylsilyl-hemiaminal, (Et3SiOCH2NMe2): The Role of DisparateOrganometallic Electronic Effects in Modifying Product Outcomes

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