【摘 要】
：
Unsymmetrical 1,3-diynes are important compounds in organic chemistry,and also important intermediates in organic synthesis.1 The structural motif of 1,3-diyne,which is a constituent part of natural p
【机 构】
：
Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education,Sch
论文部分内容阅读
Unsymmetrical 1,3-diynes are important compounds in organic chemistry,and also important intermediates in organic synthesis.1 The structural motif of 1,3-diyne,which is a constituent part of natural products such as panaxydol,panaxytriol,oploxyne,petrosiol and so on,has been recognized as an ubiquitous functionality in organic materials such as dye for dye sensitized solar cell,fluorophores,liquid crystal and so on.
其他文献
有效控制不同性质C-H键的功能化反应一直是研究者关注的焦点之一[1].对于含苄基sp3C-H键和芳基sp2C-H键的烷基取代芳烃而言,研究获得其高选择性功能化反应,如氯代反应,就是一项重要的课题[2].
A distinctive 5πe-carbonyl activation mode is reported on the basis of SET oxidation of a secondary enamine.The resulted β-enaminyl radical intermediate was trapped by a wide range of Michael acceptor
Redox transformation of carboxylic acids is an ancient,yet fundamental transformation,as carboxylic acids are readily available from nature or chemical industry.
N,O-acetals(NOAcs) have been developed as bench stable surrogates for N-carbamoyl formaldehyde and glyoxylate imines in asymmetric Mannich reactions.
A new mechanism of α-photoalkylation of β-ketocarbonyls under household compact fluorescent lamp(CFL) light is described in this paper,which can construct asymmetric all-carbon quaternary centers dire
通常认为2-OHArCH=NArX-4(2-OHBAX-4)存在互变异构平衡(Fig.1)[1]而影响它们的光谱性能.我们在对比研究2-OHBAX-4和4-OHBArX-4的紫外吸收和核磁共振(NMR)谱时发现,前者的紫外吸收最大波长λmax(nm)有显著的红移[2],NMR 谱中OH 的1H 和CH=N 的13C 的化学位移δ 值都明显移向低场.
Oxidative cross-coupling reactions between two distinct nucleophlic partners have been identified as a valuable strategy for the construction of carbon–carbon or carbon–heteroatom bonds in modern synt
Isoxazolines and pyridines are not only used as useful heterocyclic intermediates in organic synthesis,but also widely used in natural products,pharmaceuticals,etc.
Fused indoline derivatives,especially indolines with a fused six-membered ring at the C2 and C3 positions are extensively existed in natural or medicinal products.
Nickel catalysts have shown unique ligand control of stereoselectivity in the Suzuki–Miyaura cross-coupling of boronates with benzylic pivalates and derivatives involving C(sp3)–O cleavage.The SIMes l