Reaction of 2-Methylanisole with TpMe2Ir(C6H5)2(N2): A Comprehensive Set of Activations

详细信息    查看全文

• 作者：Laura L. Santos ; Kurt Mereiter ; Margarita Paneque
• 刊名：Organometallics
• 出版年：2013
• 出版时间：January 28, 2013
• 年：2013
• 卷：32
• 期：2
• 页码：565-569
• 全文大小：266K
• 年卷期：v.32,no.2(January 28, 2013)
• ISSN：1520-6041

文摘

The thermal activation of 2-methylanisole (60 掳C) by the Ir(III) complex Tp^Me2Ir(C₆H₅)₂(N₂) (1; Tp^Me2 = hydrotris(3,5-dimethylpyrazolyl)borate) yielded a mixture of hydride complexes derived from each of the possible activation processes that might be anticipated in view of the previously investigated reactions of anisole and 2,6-dimethylanisole. Four isomeric species resulted from this reaction, namely hydride鈥揷arbene 6, emanating from two C(sp³)鈥擧 and one C(sp²)鈥擧 bond activation, hydride鈥揳lkylidene 7, whose formation requires in addition cleavage of the O鈥揅H₃ bond and the formation of a new C鈥揅 bond, and hydride鈥揳lkene derivative 4 and its hydride鈥揳lkylidene tautomer 3-Me, generated through somewhat related rearrangements. The appearance of these products may be rationalized on the basis of the reactivity previously ascertained for anisole and 2,6-dimethylanisole.