PREPARATION OF FUNGICIDAL QUINAZOLINONES AND USEFUL INTERMEDIATES
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0922037B1
公开(公告)日:2003-10-01
US6166208A
申请人:——
公开号:US6166208A
公开(公告)日:2000-12-26
[EN] PREPARATION OF FUNGICIDAL QUINAZOLINONES AND USEFUL INTERMEDIATES<br/>[FR] PREPARATION DE QUINAZOLINONES FONGICIDES ET INTERMEDIAIRES UTILES
申请人:——
公开号:WO1997048684A1
公开(公告)日:1997-12-24
[EN] This invention provides advantageous processes for preparing quinazolinones of Formula (I) wherein: R<1> is C1-C10 alkyl; C3-C10 alkenyl; C3-C10 cycloalkyl; C3-C10 halocycloalkyl; C4-C10 cycloalkylalkyl; C4-C10 halocycloalkylalkyl; or C3-C10 alkynyl; R<2> is C1-C10 alkyl; C3-C10 alkenyl; C3-C10 cycloalkyl; C3-C10 halocycloalkyl; C4-C10 cycloalkylalkyl; C4-C10 halocycloalkylalkyl; C4-C10 cycloalkyl; C4-C10 halocycloalkyl; or C3-C10 alkynyl; and R<3> and R<4> are each independently hydrogen or halogen; from compounds containing the moiety (IIg). This invention further provides certain compounds of Formula (II), (IIIa), or (IVa) where R<7> is C2-C6 alkyl. [FR] Cette invention se rapporte à un procédé avantageux pour préparer des quinazolinones représentées par la formule (I), où R<1> représente alkyle C1-C10; alcényle C3-C10; cycloalkyle C3-C10; halocycloalkyle C3-C10; cycloalkylalkyle C4-C10; halocycloalkylalkyle C4-C10; ou alcynyle C3-C10; R<2> représente alkyle C1-C10; alcényle C3-C10; cycloalkyle C3-C10; halocycloalkyle C3-C10; cycloalkylalkyle C4-C10; halocycloalkylalkyle C4-C10; cycloalkyle C4-C10; halocycloalkyle C4-C10; ou alcynyle C3-C10; et R<3> et R<4> représentent chacun séparement hydrogène ou halogène; la préparation de ces quinazolinones s'effectuant à partir de composés contenant la fraction (IIg). Cette invention présente en outre certains composés représentés par la formule (II), (IIIa) ou (IVa), où R<7> représente alkyle C2-C6.
Preparation of fungicidal quinazolinones and useful intermediates
申请人:E. I. du Pont de Nemours and Company
公开号:US06166208A1
公开(公告)日:2000-12-26
This invention provides advantageous processes for preparing quinazolinones of Formula I ##STR1## wherein: R.sup.1 is C.sub.1 -C.sub.10 alkyl; C.sub.3 -C.sub.10 alkenyl; C.sub.3 -C.sub.10 cycloalkyl; C.sub.3 -C.sub.10 halocycloalkyl; C.sub.4 -C.sub.10 cycloalkylalkyl; C.sub.4 -C.sub.10 halocycloalkylalkyl; or C.sub.3 -C.sub.10 alkynyl; R.sup.2 is C.sub.1 -C.sub.10 alkyl; C.sub.3 -C.sub.10 alkenyl; C.sub.3 -C.sub.10 cycloalkyl; C.sub.3 -C.sub.10 halocycloalkyl; C.sub.4 -C.sub.10 cycloalkylalkyl; C.sub.4 -C.sub.10 halocycloalkylalkyl; C.sub.4 -C.sub.10 cycloalkyl; C.sub.4 -C.sub.10 halocycloalkyl; or C.sub.3 -C.sub.10 alkynyl; and R.sup.3 and R.sup.4 are each independently hydrogen or halogen; from compounds containing the moiety IIg ##STR2## This invention further provides certain compounds of Formula II, IIIa, or IVa ##STR3## where R.sup.7 is C.sub.2 -C.sub.6 alkyl.