会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Process for preparing substituted 2,3-dihydrobenzofuran
    • 取代2,3-二氢苯并呋喃的制备方法
    • US4564691A
    • 1986-01-14
    • US602215
    • 1984-04-19
    • Carlo NeriVilliam GiroldiniAntonio RinaldiMario TraversoniMario Clerici
    • Carlo NeriVilliam GiroldiniAntonio RinaldiMario TraversoniMario Clerici
    • C07D307/72C07C37/20C07C39/15C07C39/16C07C39/367C07D307/79C07D307/86
    • C07D307/79C07C37/20C07C39/16C07D307/86
    • A process is provided for preparing a substituted 2,3-dihydrobenzofuran of the general formula ##STR1## in which R.sub.a is hydrogen, halogen, alkyl, straight or branched having from 1 to 4 carbon atoms, aryl, alkaryl, --OH, --OR.sub.3, --N(R.sub.d).sub.2, where R.sub.3 and R.sub.d are alkyl, straight or branched having from 1 to 4 carbon atoms; R.sub.b is alkyl, straight or branched, having from 1 to 6 carbon atoms, aryl, alkaryl; and R.sub.c is hydrogen or the same as R.sub.b, by the rearrangement of a 1,1-bis(2-hydroxybenzene) alkyl and/or aryl-ethane, in the presence of catalytic amounts of a mineral acid or organic acid such as phosphoric, sulfuric or p-toluenesulfonic, at elevated temperatures from 180.degree. to 250.degree. C., and withdrawing the resulting products from the reaction mixture as they are formed. The starting 1,1-bis(2-hydroxybenzene) alkyl and/or aryl-ethane compounds may be obtained by the catalyzed reaction of a substituted biphenol with an aldehyde. The substituted 2,3-dihydrobenzofurans are useful in the manufacture of pesticides.
    • 提供了制备通式为“IMAGE”的取代2,3-二氢苯并呋喃的方法,其中Ra为氢,卤素,具有1-4个碳原子的直链或支链的烷基,芳基,烷芳基,-OH,-OR3 ,-N(Rd)2,其中R3和Rd是具有1至4个碳原子的直链或支链烷基; Rb是具有1-6个碳原子的直链或支链烷基,芳基,烷芳基; 和Rc是氢或与Rb相同,通过在催化量的无机酸或有机酸如磷酸的存在下重新配置1,1-双(2-羟基苯)烷基和/或芳基 - 乙烷, 硫酸或对甲苯磺酸,在180℃至250℃的升高温度下,在反应混合物形成时从所得反应混合物中取出。 起始的1,1-双(2-羟基苯)烷基和/或芳基 - 乙烷化合物可以通过取代的联苯酚与醛的催化反应获得。 取代的2,3-二氢苯并呋喃可用于制造农药。
    • 8. 发明授权
    • Four-wheel drive vehicle transmission
    • 四轮驱动车辆传动
    • US07578762B2
    • 2009-08-25
    • US10492873
    • 2002-10-15
    • Franco CimattiCarlo Neri
    • Franco CimattiCarlo Neri
    • F16H37/08
    • B60K17/3467F16H3/085F16H3/089F16H2048/04F16H2200/0017F16H2200/0052
    • A four-wheel-drive vehicle transmission (1) having a drive torque input shaft (8) rotated about a first axis of rotation (A); a front output shaft (10); a rear output shaft (12); an auxiliary tubular shaft (14) mounted alongside the input shaft (8) to rotate about a second axis of rotation (D); at least one first group of gears (15, 16) for selectively connecting the auxiliary tubular shaft (14) to the input shaft (8); a first countershaft (17) mounted inside the auxiliary tubular shaft (14); a second countershaft (18) mounted for rotation opposite the first countershaft (17); a planetary gear train (19) for mechanically connecting the auxiliary tubular shaft (14) to the first (17) and second (18) countershafts; and a first (25) and a second (26) cascade gear set for connecting the first and second countershafts (17,18) to the front and rear output shafts (10,12), respectively.
    • 具有围绕第一旋转轴线(A)旋转的驱动扭矩输入轴(8)的四轮驱动车辆传动装置(1); 前输出轴(10); 后输出轴(12); 辅助管状轴(14),其安装在所述输入轴(8)旁边以围绕第二旋转轴线(D)旋转; 用于选择性地将辅助管状轴(14)连接到输入轴(8)的至少一个第一组齿轮(15,16); 安装在所述辅助管状轴(14)内的第一中间轴(17); 安装成与第一中间轴(17)相反旋转的第二中间轴(18); 用于将辅助管状轴(14)机械地连接到第一(17)和第二(18)中间轴的行星齿轮系(19) 以及用于将第一和第二中间轴(17,18)分别连接到前和后输出轴(10,12)的第一(25)和第二(26)级联齿轮组。
    • 10. 发明申请
    • Four-wheel drive vehicle transmission
    • 四轮驱动车辆传动
    • US20050119088A1
    • 2005-06-02
    • US10492873
    • 2002-10-15
    • Franco CimattiCarlo Neri
    • Franco CimattiCarlo Neri
    • B60K17/344B60K17/346F16H3/085F16H3/089F16H3/091F16H3/24F16H48/00F16H37/02
    • B60K17/3467F16H3/085F16H3/089F16H2048/04F16H2200/0017F16H2200/0052
    • A four-wheel-drive vehicle transmission (1) having a drive torque input shaft (8) rotated about a first axis of rotation (A); a front output shaft (10); a rear output shaft (12); an auxiliary tubular shaft (14) mounted alongside the input shaft (8) to rotate about a second axis of rotation (D); at least one first group of gears (15, 16) for selectively connecting the auxiliary tubular shaft (14) to the input shaft (8); a first countershaft (17) mounted inside the auxiliary tubular shaft (14); a second countershaft (18) mounted for rotation opposite the first countershaft (17); a planetary gear train (19) for mechanically connecting the auxiliary tubular shaft (14) to the first (17) and second (18) countershafts; and a first (25) and a second (26) cascade gear set for connecting the first and second countershafts (17,18) to the front and rear output shafts (10,12), respectively.
    • 具有围绕第一旋转轴线(A)旋转的驱动扭矩输入轴(8)的四轮驱动车辆传动装置(1); 前输出轴(10); 后输出轴(12); 辅助管状轴(14),其安装在所述输入轴(8)旁边以围绕第二旋转轴线(D)旋转; 用于选择性地将辅助管状轴(14)连接到输入轴(8)的至少一个第一组齿轮(15,16); 安装在所述辅助管状轴(14)内的第一中间轴(17); 安装成与第一中间轴(17)相反旋转的第二中间轴(18); 用于将辅助管状轴(14)机械地连接到第一(17)和第二(18)中间轴的行星齿轮系(19) 以及用于将第一和第二中间轴(17,18)分别连接到前和后输出轴(10,12)的第一(25)和第二(26)级联齿轮组。