Efficient Synthesis of Fluoren-9-ones by the Palladium-Catalyzed Annulation of Arynes by 2-Haloarenecarboxaldehydes
作者:Jesse P. Waldo、Xiaoxia Zhang、Feng Shi、Richard C. Larock
DOI:10.1021/jo8009215
日期:2008.9.1
Fluoren-9-ones and derivatives are readily prepared in good yields by the annulation of in situ generated arynes by 2-haloarenecarboxaldehydes in the presence of a palladium catalyst.
Boronic ester and acid compounds, synthesis and uses
申请人:Millennium Pharmaceuticals, Inc.
公开号:US20030199561A1
公开(公告)日:2003-10-23
Disclosed herein is a method for reducing the rate of degradation of proteins in an animal comprising contacting cells of the animal with certain boronic ester and acid compounds. Also disclosed herein are novel boronic ester and acid compounds, their synthesis and uses.
Rapid Access to Fused Tetracyclic N-Heterocycles via Amino-to-Alkyl 1,5-Palladium Migration Coupled with Intramolecular C(sp<sup>3</sup>)–C(sp<sup>2</sup>) Coupling
An unprecedented route for the preparation of fused tetracyclic N-heterocycles is presented through the palladium-catalyzed cyclization of isocyanides with alkyne-tethered aryliodides. In this transformation, a novel amino-to-alkyl 1,5-palladium migration/intramolecular C(sp3)–C(sp2) coupling sequence was observed first. More importantly, isocyanide exhibited three roles, serving simultaneously as
CYCLIC COMPOUND, METHOD FOR PRODUCING SAME, COMPOSITION, AND METHOD FOR FORMING RESIST PATTERN
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP2743249A1
公开(公告)日:2014-06-18
The present invention provides a cyclic compound having a molecular weight of 500 to 5000 and represented by the following formula (1), a method for producing the cyclic compound, a composition containing the cyclic compound, and a method for forming a resist pattern using the composition:
wherein at least one of R0 is a monovalent group containing an iodine atom.
COMPOUND, RESIN, AND METHOD FOR PURIFYING SAME, UNDERLAYER FILM FORMATION MATERIAL FOR LITHOGRAPHY, UNDERLAYER FILM FORMING COMPOSITION, AND UNDERLAYER FILM, AND METHOD FOR FORMING RESIST PATTERN AND METHOD FOR FORMING CIRCUIT PATTERN
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP3279179A1
公开(公告)日:2018-02-07
The present invention provides a compound represented by following formula (1),
wherein R1 represents a 2n-valent group having 1 to 30 carbon atoms, each of R2 to R5 independently represents a straight, branched or cyclic alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkoxy group having 1 to 30 carbon atoms, a halogen atom, a thiol group or a hydroxyl group, provided that at least one selected from R1 to R5 represents a group including an iodine atom and at least one R4 and/or at least one R5 represent/represents one or more selected from the group consisting of a hydroxyl group and a thiol group, each of m2 and m3 independently represents an integer of 0 to 8, each of m4 and m5 independently represents an integer of 0 to 9, provided that m4 and m5 do not represent 0 at the same time, n represents an integer of 1 to 4, and each of p2 to p5 independently represents an integer of 0 to 2.