Oxidative demetalation of Fischer alkoxy carbene complexes with stoichiometric pyridine N-oxide and NaBH4-promoted demetalation of Fischer iminocarbene complexes with sulfur and selenium

	Oxidative demetalation of Fischer alkoxy carbene complexes with stoichiometric pyridine N-oxide and NaBH4-promoted demetalation of Fischer iminocarbene complexes with sulfur and selenium
	Zheng, Zhaoyan; Chen, Jinzhu; Yu, Zhengkun; Han, Xiuwen
刊名	journal of organometallic chemistry
	2006-08-15
卷号	691 期号:17 页码:3679-3692
关键词	Fischer carbene pyridine N-oxide iminocarbene sulfur selenium
通讯作者	余正坤
产权排序	1;1
英文摘要	oxidation of fischer alkoxy carbene complexes were systematically investigated with stoichiometric pyridine n-oxide (pno) under mild conditions, forming ester products in good to excellent yields from the corresponding monocarbene complexes. fischer alkoxy biscarbene complexes efficiently underwent stepwise oxidative demetalation under controlled conditions, resulting in ester-monocarbene and diester products, respectively. this oxidation protocol has demonstrated a generally efficient method to oxidize fischer alkoxy carbene complexes under mild conditions, providing a new route to novel monocarbene complexes from fischer biscarbene complexes. in the presence of nabh4, reactions of fischer iminocarbene complexes with elemental sulfur or selenium in ethanol at ambient temperature regioselectively afforded thione or selone complexes by insertion of a sulfur or selenium atom into the m=c bonds in fischer carbene complexes, and metal-free selone was also obtained. the molecular structures of the iminocarbene complexes and selone derivatives were confirmed by x-ray crystallographic study. the nabh4-promoted demetalation protocol suggests a potential new route to demetalate fischer aminocarbene complexes. (c) 2006 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, inorganic & nuclear ; chemistry, organic
研究领域[WOS]	chemistry
关键词[WOS]	transition-metal-complexes ; diels-alder reactions ; tungsten pentacarbonyl groups ; lewis acid catalysis ; asymmetric-synthesis ; organic syntheses ; alkenylcarbene complexes ; selective isomerization ; photochemical-reactions ; c bonds
收录类别	SCI ; IC ; CCR
原文出处	true
语种	英语
WOS记录号	WOS:000239833100017
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/97203]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Zhaoyan,Chen, Jinzhu,Yu, Zhengkun,et al. Oxidative demetalation of Fischer alkoxy carbene complexes with stoichiometric pyridine N-oxide and NaBH4-promoted demetalation of Fischer iminocarbene complexes with sulfur and selenium[J]. journal of organometallic chemistry,2006,691(17):3679-3692.
APA	Zheng, Zhaoyan,Chen, Jinzhu,Yu, Zhengkun,&Han, Xiuwen.(2006).Oxidative demetalation of Fischer alkoxy carbene complexes with stoichiometric pyridine N-oxide and NaBH4-promoted demetalation of Fischer iminocarbene complexes with sulfur and selenium.journal of organometallic chemistry,691(17),3679-3692.
MLA	Zheng, Zhaoyan,et al."Oxidative demetalation of Fischer alkoxy carbene complexes with stoichiometric pyridine N-oxide and NaBH4-promoted demetalation of Fischer iminocarbene complexes with sulfur and selenium".journal of organometallic chemistry 691.17(2006):3679-3692.