CAS: 73507-41-2; 2-Methoxy-4-Methyl-1-(2-Methyl-2-Propanyl)-3,5-Dinitrobenzene

专利信息

专利号:US-4288638-A
优先权日:1977-12-29
标 题 :Process for the synthesis of 2,4-dinitro-6-t-butyl-3-methylanisole, referred to as musk ambrette
发明人：PASCAL HELENE M; EMEURY JEAN-MARIE L
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The invention relates to a process for the synthesis of 2,4-dinitro-6-t-butyl-3-methylanisole or musk ambrette. n The process according to the invention is characterized in that 6-t-butyl-3-methylanisole is reacted with a nitrating mixture consisting of 30 to 50% of acetic acid, 20 to 30% of acetic anhydride and 25 to 45% by weight of nitric acid, at between 7° and 15° C. The product is recovered in the pure state with a good yield by adding small amounts of water to the crude reaction mixture. n Application: Synthesis of a scented product.

专利号:US-8926955-B2
优先权日:2008-12-22
标题 :Synthesis of polymer conjugates of indolocarbazole compounds
发明人：BAGNOD RAFFAELLA; BECCARIA LUCA; BERTARIONE RAVA ROSSA LUISA; CRISCUOLO DOMENICO; LORENZETTO CHIARA; MAINERO VALENTINA; MARCONI ALESSANDRA; PINCELLI CARLO; TRAVERSA SILVIO
权利人:BAGNOD RAFFAELLA; BECCARIA LUCA; BERTARIONE RAVA ROSSA LUISA; CRISCUOLO DOMENICO; LORENZETTO CHIARA; MAINERO VALENTINA; MARCONI ALESSANDRA; PINCELLI CARLO; TRAVERSA SILVIO; CREABILIS S A
摘要:The present invention relates to a process for the preparation of polymer conjugates of indolocarbaxole compounds, in particular of polymer conjugates of K-252a and derivatives thereof, by a synthetic route which results in a highly pure product, with a high product yield. In a further aspect the present invention relates to novel polymer conjugates of K-252a and derivatives thereof, wherein the chemical group linking the polymer unity to the K-252a or to the K-252a derivative compound is characterized by a 5-member oxazolidindionic cyclic structure. These novel polymer conjugates are obtained through the novel synthetic route with high purity and high yields.

专利号:US-4233463-A
优先权日:1977-12-29
标 题 :Process for the separation of 2,4-dinitro-6-t-butyl-3-methylanisole, referred to as musk ambrette, from the crude synthesis mixtures in which it is present
发明人：PASCAL HELENE M; EMEURY JEAN-MARIE L
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The invention relates to a process for the separation of 2,4-dinitro-6-t-butyl-3-methylanisole, referred to as musk ambrette, from the crude mixtures in which it is present, which are obtained by nitrating 6-t-butyl-3-methylanisole. n According to the invention, an amount of water representing from 5 to 40% by weight of the nitrating mixture used in the synthesis is introduced onto the crude synthesis mixture in a first addition, the pure musk ambrette obtained is collected and several small amounts of water, representing from 1 to 15% by weight of the said nitrating mixture used, are then introduced, the precipitated product being collected between each addition. The process makes it possible to collect, in a pure form and without the use of an organic extraction solvent, about three quarters of the musk ambrette present in the crude synthesis mixture.

专利号:CA-2747838-C
优先权日:2008-12-22
标 题 :Synthesis of polymer conjugates of indolocarbazole compounds

专利号:US-2011311451-A1
优先权日:2008-12-22
标题 :Synthesis of polymer conjugates of indolocarbazole compounds

专利号:EP-2381964-A1
优先权日:2008-12-22
标题 :Synthesis of polymer conjugates of indolocarbazole compounds