Abstract:
The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula (III) and/or Formula (IV) and/or Formula (V) from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula (III) and/or Formula (IV) and/or Formula (V), including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula (IV) and/or Formula (V) in order to produce pest control compositions, in particular insecticides, comprising such compounds.
Abstract:
In a continuous process for the preparation of alkyl nitrites and dinitrites, an alkanol or dialkanol is first mixed with an aqueous mineral acid, the reaction mixture obtained is then reacted with an inorganic nitrite and the product obtained can then be isolated immediately.
Abstract:
The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula (III) and/or Formula (IV) and/or Formula (V) from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula (III) and/or Formula (IV) and/or Formula (V), including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula (IV) and/or Formula (V) in order to produce pest control compositions, in particular insecticides, comprising such compounds.
Abstract:
The present invention relates to a method for preparing the pyripyropene compound of the formula (I) which method comprises the following steps: i) subjecting a pyripyropene compound of formula Pyripyropene A to an alkaline hydrolysis to yield a 1,7,11-trideacetylpyripyropene A, ii) reacting 1,7,11-trideacetylpyripyropene A obtained in step i) with cyclopropane carbonyl chloride to yield a raw product containing the pyripyropene compound of formula (I); iii) subjecting the raw product of step ii) to crystallization to yield a crystalline pyripyropene compound of formula (I) and a mother liquor;and iv) recycling the mother liquor or a pyripyropene compound containing fraction thereof to the alkaline hydrolysis of step i).
Abstract:
The present invention relates to a method for preparing the pyripyropene compound of the formula (I) which method comprises the following steps: i) subjecting a pyripyropene compound of formula Pyripyropene A to an alkaline hydrolysis to yield a 1,7,11-trideacetylpyripyropene A, ii) reacting 1,7,1 1-trideacetylpyripyropene A obtained in step i) with cyclopropane carbonyl chloride to yield a raw product containing the pyripyropene compound of formula (I); iii) subjecting the raw product of step ii) to crystallization to yield a crystalline pyripyropene compound of formula (I) and a mother liquor;and iv) recycling the mother liquor or a pyripyropene compound containing fraction thereof to the alkaline hydrolysis of step i).
Abstract:
La presente invención se refiere a un método para preparar el compuesto de piripiropeno de la Fórmula i (ver Fórmula) en donde el método comprende las siguientes etapas: i) someter un compuesto de piripiropeno de la fórmula piripiropeno A a una hidrólisis alcalina para obtener 1,7,11-trideacetilpiripiropeno A, ii) hacer reaccionar 1,7,11-trideacetilpiripiropeno A obtenido en la etapa i) con cloruro de ciclopropancarbonilo, a fin de obtener un producto crudo que contiene el compuesto de piripiropeno de la Fórmula I; iii) someter el producto crudo de la etapa ii) a cristalización para obtener un compuesto cristalino de piripiropeno de la Fórmula I y un licor madre; y iv) reciclar el licor madre o una fracción de este que contiene el compuesto de piripiropeno a la hidrólisis alcalina de la etapa i).
Abstract:
The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula III and/or Formula IV and/or Formula V from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula III and/or Formula IV and/or Formula V, including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula IV and/or Formula V in order to produce pest control compositions, in particular insecticides, comprising such compounds.
Abstract:
The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula (III) and/or Formula (IV) and/or Formula (V) from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula (III) and/or Formula (IV) and/or Formula (V), including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula (IV) and/or Formula (V) in order to produce pest control compositions, in particular insecticides, comprising such compounds.
Abstract:
Método para preparar el compuesto de piripiropeno de fórmula I,**Fórmula** comprendiendo el método las siguientes etapas: i) someter un compuesto de piripiropeno de fórmula II a una hidrólisis alcalina para producir un compuesto de piripiropeno de fórmula III,**Fórmula** ii) hacer reaccionar el compuesto de piripiropeno de fórmula III obtenido en la etapa i) con cloruro de ciclopropanocarbonilo para producir un producto sin procesar que contiene el compuesto de piripiropeno de fórmula I; iii) someter el producto sin procesar de la etapa ii) a cristalización para producir un compuesto de piripiropeno cristalino de fórmula I y unas aguas madre; y iv) recircular las aguas madre o una fracción que contiene compuesto de piripiropeno de las mismas a la hidrólisis alcalina de la etapa i).