Expedient Access to 2,3-Dihydropyridines from Unsaturated Oximes by Rh(III)-Catalyzed C–H Activation
摘要:
alpha,beta-Unsaturated - oxime pivalates are proposed to undergo reversible C(sp(2))-H insertion with cationic Rh (III) complexes to furnish five-membered metallacycles. In the presence of 1,1-disubstituted olefins, these species participate in irreversible migratory insertion to give, after reductive elimination, 2,3-dihydropyridine products in good yields. Catalytic hydrogenation can then be used to. convert these molecules into piperidines, which are important structural components of numerous pharmaceuticals.
REACTIONS OF ORGANOALUMINUMS WITH COPPER(II) HALIDES. A CONVENIENT ROUTE TO ALKYL HALIDES PROM OLEFINS VIA HYDROALUMINATION
作者:Fumie Sato、Yoshikuni Mori、Masao Sato
DOI:10.1246/cl.1978.833
日期:1978.8.5
The reaction of lithium tetraalkylaluminums with copper(ll) chloride or bromide gives the corresponding alkyl halides in good yield. The facile reaction offers a convenient method for the preparation of 1-haloalkanes or 1-haloalkenes from 1-alkenes or nonconjugated diolefins, respectively.
SATO F.; MORI G.; SATO M., CHEM. LETT., 1978, NO 8, 833-834
作者:SATO F.、 MORI G.、 SATO M.
DOI:——
日期:——
COMPOSITION FOR FORMING PATTERN, KIT, PATTERN PRODUCING METHOD, PATTERN, AND METHOD FOR MANUFACTURING SEMICONDUCTOR ELEMENT
申请人:FUJIFILM Corporation
公开号:US20220002450A1
公开(公告)日:2022-01-06
Provided are: a composition for forming a pattern for imprinting, which contains a polymerizable compound, a photopolymerization initiator, and an organic halogen compound containing at least one atom selected from the group consisting of a chlorine atom, a bromine atom, and an iodine atom, in which the organic halogen compound is a compound which is stable to light of a mercury lamp, and a content of the organic halogen compound is 0.001% to 1.0% by mass with respect to a total solid content in the composition for forming a pattern; a kit including the composition for forming a pattern; a pattern producing method; a pattern; and a method for manufacturing a semiconductor element.
Expedient Access to 2,3-Dihydropyridines from Unsaturated Oximes by Rh(III)-Catalyzed C–H Activation
作者:Fedor Romanov-Michailidis、Kassandra F. Sedillo、Jamie M. Neely、Tomislav Rovis
DOI:10.1021/jacs.5b04946
日期:2015.7.22
alpha,beta-Unsaturated - oxime pivalates are proposed to undergo reversible C(sp(2))-H insertion with cationic Rh (III) complexes to furnish five-membered metallacycles. In the presence of 1,1-disubstituted olefins, these species participate in irreversible migratory insertion to give, after reductive elimination, 2,3-dihydropyridine products in good yields. Catalytic hydrogenation can then be used to. convert these molecules into piperidines, which are important structural components of numerous pharmaceuticals.