Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion   and [3+2] Annulation

doi:10.1021/acs.organomet.5b00242

CORC > 北京大学 > 化学与分子工程学院

	Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation
	Zhou, Xiaoxi ; He, Xiehua ; Lin, Jianfeng ; Zhuo, Qingde ; Chen, Zhixin ; Zhang, Hong ; Wang, Jianbo ; Xia, Haiping
刊名	ORGANOMETALLICS
	2015
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
DOI	10.1021/acs.organomet.5b00242
英文摘要	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; SCI(E); ARTICLE; zh@xmu.edu.cn; hpida@xmu.edu.cn; 9; 1742-1750; 34
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/420174]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhou, Xiaoxi,He, Xiehua,Lin, Jianfeng,et al. Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation[J]. ORGANOMETALLICS,2015.
APA	Zhou, Xiaoxi.,He, Xiehua.,Lin, Jianfeng.,Zhuo, Qingde.,Chen, Zhixin.,...&Xia, Haiping.(2015).Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation.ORGANOMETALLICS.
MLA	Zhou, Xiaoxi,et al."Reactions of Osmium Hydrido Alkenylcarbyne with Allenoates: Insertion and [3+2] Annulation".ORGANOMETALLICS (2015).