摘要:
Tris(disubstituted amino)sulfonium perfluoroalkoxides and tris(disubstituted amino)sulfonium perfluoroalkylmercaptides and process for their preparation.
摘要:
Tris(disubstituted amino)sulfonium perfluoroalkoxides and tris(disubstituted amino)sulfonium perfluoroalkylmercaptides and process for their preparation.
摘要:
Fluorinated carbamoyl sulfides, such as N,N'[thiobis[(methylimino)carbonyloxy]]bis[2,2,2-trifluoroethanimidothioic acid], dimethyl ester, useful for control of insects.
摘要:
N-Fluorohaloacetyl-N-methylaminobenzophenone anti-oxime, the corresponding diazepin-N-oxides, their use as tranquilizers, muscle relaxants and sedatives, and their use as intermediates in the preparation of 3-fluorobenzodiazepines, which are also useful as tranquilizers, muscle relaxants and sedatives.
摘要:
3-Fluorobenzodiazepines, such as 3-fluoro-1,3-dihydro-1-methyl-7-chloro-5-phenyl-2H-1,4-benzodiazepin-2-one, useful as tranquilizers, muscle relaxants, and sedatives.
摘要:
Process for preparing an organic compound of the formula R.sup.2 R.sup.2 CFC(O)R.sup.3, which process comprises contacting and reacting in a reaction mixture which includes an inert solvent, at a temperature of -40.degree. C. to -100.degree. C., ROF and ##STR1## R is polyfluoroperhaloalkyl of 1-6 carbon atoms or FOCF.sub.2 ; R.sup.1 is hydrocarbyl of 1-6 carbon atoms;each R.sup.2 is selected from H, alkyl of 1-17 carbon atoms, cycloalkyl of 3-6 carbon atoms, aryl, heteroaryl and such alkyl, cycloalkyl, aryl and heteroaryl substituted by halogen or alkoxy of 1-6 carbon atoms;R.sup.3 is selected from H, alkyl and haloalkyl of 1-16 carbon atoms, cycloalkyl of 3-10 carbon atoms, aryl and haloaryl, OSi(R.sup.1).sub.3, OH, NH.sub.2, alkoxy of 1-6 carbon atoms, aryloxy, NHR.sup.1 and NR.sup.1.sub.2 wherein R.sup.1 is alkyl of 1-6 carbon atoms, N-arylamino and nitrogen or sulfur heterocyclic of 4-5 carbon atoms;R.sup.3 and one R.sup.2 taken together is a diradical which with the C.dbd.C group is carbocyclic, heterocyclic or haloheterocyclic, and recovering from the reaction mixture the compound of the formula R.sup.2 R.sup.2 CFC(O)R.sup.3.
摘要:
6-Substituted-2-halofluoromethyl-1,2-dihydro-2-hydroxy-1-methyl-4-phenylquinazolines and their use as intermediates in the preparation of 3-fluorobenzodiazepines, which are useful as tranquilizers, muscle relaxants and sedatives.
摘要:
The problem of recurrent solder joint failure in spiral antennas is solved by the present invention through the use of resistive/capacitive contacts. Specifically, an electrical connector is provided for connecting opposed conductors disposed on a stripline, to a spiral antenna having a pair of dipole conductors disposed on a substrate. The connector includes a housing having a base, and a sidewall for supporting the substrate. A center post having first and second ends, and a cylindrical aperture, is mounted in the housing. The substrate is secured to the first end of the center post, the second end thereof secured to the base of the housing. A stripline contact snubber is supported in an end of the cylindrical aperture adjacent the substrate and receives the stripline. To ensure RF continuity between the stripline conductors and the dipole conductors, one or more mechanically compliant, leaf spring resistive/capacitive contacts are provided. Each of the resistive/capacitive contacts preferably includes a first portion soldered to an opposed conductor of the stripline, and a second portion extending from the first portion. Alternatively, each contact may be an integral extension of one of the stripline conductors. The second portion of each resistive/capacitive contact is compressed between the contact snubber and one of the dipole conductors, and thus placed in abutting relation therewith. Preferably, each resistive/capacitive contact is formed of a flexible metal material, or a metal-plated plastic material.
摘要:
Tris(disubstituted amino)sulfonium perfluorocarbanion salts, process for their preparation and the use thereof as catalysts in group transfer polymerization.
摘要:
There is disclosed a solution of at least one fluoroxy compound, wherein said solution has a fluoroxy compound concentration of at least 0.5 meq/liter; said concentration containing about 35 to 100% of an acyl hypofluorite, based on the total number of equivalents of fluoroxy compounds present. The acyl hypofluorite has the formula X(CF.sub.2).sub.n COOF wherein X is H or F and n is 5 to 16. The solution is prepared by treating a suspension of a corresponding specified alkali salt with excess F.sub.2, and is useful as a selective fluorinating agent.