Hetero-Diels-Alder Reaction of 3-Bromo-7-(bromomethyl)tetracyclo[5.3.1.02,6.04,8]undec-10(12)-ene-9,11-dione with Pentafulvenes: Facile Synthesis of Novel Polycyclic Cage Compounds Having a Pyran Ring
前所未有的不对称铜催化将ZnEt 2(Z n Bu 2)添加到五氟醚C 5 H 4(CHAr)(Ar = 2-MeOPh和相关物质)的环外CC键中,导致对映体富集(最多93个) :7 er)环戊二烯基配体(C 5 H 4 CHEtAr;缩写为Cp R)。用手性亚磷酰胺配体和磷酸盐添加剂促进铜催化剂对于实现可接受的对映选择性和反应速率都是至关重要的。已经制备了对映体Cp R 2 TiCl 2络合物。(S,S)异构体在24小时时对胰腺癌,乳腺癌和结肠癌细胞系的活性是其(R,R)对映体的两倍。
Acetylene gas has been applied as a feedstock under transition-metal catalysis and photo-redox conditions to produce important chemicals including terminal alkynes, fulvenes, and fluorinated styrene compounds. The reaction discovery process was accelerated through the use of “stop-flow” micro-tubing reactors. This reactor prototype was developed by joining elements from both continuous micro-flow and
Tandem reactions of N,N-dialkylamides with organolithium compounds and cyclopentadiene. A new efficient synthesis of pentafulvenes
作者:Hiroyuki Kurata、Tatsuya Ekinaka、Takeshi Kawase、Masaji Oda
DOI:10.1016/s0040-4039(00)79179-9
日期:1993.5
Reactions of N,N-dialkylamides with organolithium compounds followed by addition of cyclopentadiene furnish 6-mono- or 6,6-di-substituted pentafulvenes in moderate to high yields, providing a new and simple pentafulvene synthesis.
Accessing Monosubstituted Cyclopentadienyl Rhodium(I) and Iridium(I) Complexes by a Simultaneous Nucleophilic Addition-Metalation Approach to Fulvenes
作者:Aragorn Laverny、Nicolai Cramer
DOI:10.1021/acs.organomet.0c00550
日期:2020.12.28
Despite advances in the synthesis of polysubstituted cyclopentadienyl metal complexes, the rapid access to a library of monosubstituted Cp bearing metal complexes remains challenging. A convenient and general method to access a broad range of monosubstituted cyclopentadienyl rhodium(I) and iridium(I) complexes is reported. The process involves a direct nucleo-metalation of fulvenes with widely available
A thermoplastic polymer composition comprises a thermoplastic polymer and a compatibilizing agent comprising a fulvene moiety or a fulvene-derived moiety. A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, and a compatibilizing agent comprising a fulvene moiety or a fulvene-derived moiety.
Diheteroarylmethyl substituted titanocenes: A novel class of possible anti-cancer drugs
作者:Clara Pampillón、Nigel J. Sweeney、Katja Strohfeldt、Matthias Tacke
DOI:10.1016/j.ica.2006.05.021
日期:2006.9
From the reaction of tert-butyl lithium or n-butyl lithium with N-methylpyrrole (1a), furan (1b) or 2-bromo-thiophen (1c), 2-N-methylpyrrolyl lithium (2a), 2-furyl lithium (2b) or 2-thiophenyl lithium (2c), respectively, was obtained. When reacted with 6-(2-N-methylpyrrolyl) fulvene (3a), 6-(2-furyl) fulvene (3b) or 6-(2-thiophenyl) fulvene (3c), the corresponding lithiated intermediates were formed (4a-c). Titanocenes (5a-c) were obtained through transmetallation with titanium tetrachloride. When these titanocenes were tested against pig kidney epithelial (LLC-PK) cells, inhibitory concentrations (IC50) of 32 mu M, 140 mu M, and 240 mu M, respectively, were observed. These values represent improved cytotoxicity against LLC-PK, compared to their ansa-analogues. (c) 2006 Elsevier B.V. All rights reserved.