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	Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation
	Xiaoxi Zhou ; Xiehua He ; Jianfeng Lin ; Qingde Zhuo ; Zhixin Chen ; Hong Zhang ; Jianbo Wang ( Peking Univ, Beijing Natl Lab Mol Sci BNLMS) ; Haiping Xia ; Xia HP(夏海平)
	2015-05-11
关键词	FISCHER CARBENE COMPLEXES TRANSITION-METAL-COMPLEXES CATALYZED DIRECT ARYLATION OLEFIN-METATHESIS CATALYSTS 4+2 CYCLOADDITION REACTION CYCLIZATION REACTIONS ALKYNE METATHESIS ORGANIC SYNTHESES ENYNE METATHESIS BOND ACTIVATION
英文摘要	通讯作者地址: Zhang, H; Treatment of the osmium hydrido alkenylcarbyne complex [OsH{equivalent to CC(PPh3)=CHPh}(PPh3)(2)Cl-2]BF4 (1) with allenoates (CH2=C=CHCOOR, R = Me, Et) in the presence of excess AgBF4 leads to the insertion products 2/3. The reactions of complex 1 with substituted allenoates, i.e., diethyl 2-vinylidenesuccinate (CH2=C=C(CH2COOEt)(COOEt)) and ethyl penta-2,3-dienoate (CH(CH3)=C=CH(COOEt)), result in the formation of [3 + 2] annulation products 4 and 6, respectively. Mechanisms of the reactions have been proposed with the isolation of the key intermediates. The results reveal that the divergent pathways for these reactions are mainly of steric origin.; National Natural Science Foundation of China 21272193 21332002 21490573 program for Changjiang Scholars and Innovative Research Team in University
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/85040]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Xiaoxi Zhou,Xiehua He,Jianfeng Lin,et al. Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation[J],2015.
APA	Xiaoxi Zhou.,Xiehua He.,Jianfeng Lin.,Qingde Zhuo.,Zhixin Chen.,...&夏海平.(2015).Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation..
MLA	Xiaoxi Zhou,et al."Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation".(2015).

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