Intramolekulare Aromatenalkylierungen, 18. Mitt. Synthese von 3,4-Dihydro-1′-methylspiro[naphthalin-1(2H), 4′-piperidinen]
摘要:
AbstractAus den Tetrahydropyridinen 10 entstehen in siedender Bromwasserstoffsäure stereoselektiv die Titelverbindungen 12, deren Struktur und Konfiguration durch NMR‐Spektroskopie und Röntgenstrukturanalyse bewiesen wird. Die Vorstufen 10 werden aus den Pyridincarbonitrilen 5 und den Grignardreagenzien 6 nach Standardverfahren gewonnen.
Intramolekulare Aromatenalkylierungen, 18. Mitt. Synthese von 3,4-Dihydro-1′-methylspiro[naphthalin-1(2H), 4′-piperidinen]
摘要:
AbstractAus den Tetrahydropyridinen 10 entstehen in siedender Bromwasserstoffsäure stereoselektiv die Titelverbindungen 12, deren Struktur und Konfiguration durch NMR‐Spektroskopie und Röntgenstrukturanalyse bewiesen wird. Die Vorstufen 10 werden aus den Pyridincarbonitrilen 5 und den Grignardreagenzien 6 nach Standardverfahren gewonnen.
Pyridine derivatives and insecticide and miticide comprising said
申请人:Idemitsu Kosan Co., Ltd.
公开号:US05262420A1
公开(公告)日:1993-11-16
A pyridine compound of the formula ##STR1## wherein X is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 4 carbon atoms or a haloalkoxyl group having 1 to 4 carbon atoms, n is 1 to 5, and when n is 2 or more, Xs may be identical to or different from each other, A is an alkyl residue or alkene residue in which a portion connecting the aryl group with the 4-position of the pyridyl group has 3 to 8 carbon atoms, or an alkapolyene residue in which said portion has 4 to 8 carbon atoms and 2 to 4 double bonds; the alkyl residue, alkene residue, and alkapolyene residue may have an alkyl side chain having 1 to 4 carbon atoms, an alkylidene side chain having 1 to 4 carbon atoms or 1 to 16 halogen atoms, and when there are 2 or more side chains, the side chains may be identical to or different from each other, and R.sup.1 and R.sup.2 are each a hydrogen atom or an alkyl group having 1 to 6 carbon atoms or salts thereof. The pyridine compounds and salts thereof exhibit a strong insecticidal and miticidal activity and are low in residuality and accumulativity and are thus useful as insecticides and miticides for the control of pests in agriculture and horticulture.
Nickel-catalysed para-CH activation of pyridine with switchable regioselective hydroheteroarylation of allylarenes
作者:Wei-Chih Lee、Chien-Hung Chen、Cheng-Yuan Liu、Ming-Shiuan Yu、Yung-Huei Lin、Tiow-Gan Ong
DOI:10.1039/c5cc07455j
日期:——
para-CH activation of pyridine with allylbenzene is described by Ni/Al cooperative catalysis to achieve branch and linear selectivity.
使用Ni/Al协同催化描述了烯丙基苯与吡啶的para-CH活化,以实现支链和线性选择性。
PYRIDINE DERIVATIVES AND INSECTICIDAL AND MITICIDAL AGENT CONTAINING SAME AS ACTIVE INGREDIENT
申请人:IDEMITSU KOSAN COMPANY LIMITED
公开号:EP0383950A1
公开(公告)日:1990-08-29
Novel pyridine derivatives represented by general formula (I) and salts thereof are disclosed. In the said formula, X represents a hydrogen atom, a halogen atom, an alkyl group containing 1 to 4 carbon atoms, an alkoxy group or a haloalkoxy group, n represents an integer of 1 to 5, A represents an alkylene or alkenylene residue containing 3 to 8 carbon atoms or an alkapolyenylene residue containing 4 to 8 carbon atoms, which may optionally have an alkyl or alkylidene side chain containing 1 to 4 carbon atoms, or 1 to 16 halogen atoms, and R' and R2 each represents a hydrogen atom or an alkyl group containing 1 to 6 carbon atoms. Also disclosed is an insecticidal and miticidal agent containing same as active ingredient which shows strong insecticidal and miticidal activities with reduced per- sistance and accumulation of its effect. and which can be effectively utilized for controlling harmful insects in agriculture and horticulture.
Synthesis and antifungal activity of novel aza-d--homosteroids, hydroisoquinolines, pyridines and dihydropyridines
作者:GL Patrick、OS Kinsman
DOI:10.1016/0223-5234(96)89557-2
日期:1996.1
A series of novel aza-D-homosteroids and their hydroisoquinoline precursors were synthesized and tested for antifungal activity against a variety of Candida strains and also Aspergillus species. A number of 4-substituted pyridines and tetrahydropyridines were also tested. Several compounds showed a broad spectrum of modest antifungal activity and three structures were investigated further for fungicidal and in vivo activity.