摘要:
Cyanohydrin esters are prepared by reacting an acyl halide represented by the structure ##STR1## with an acyl halide represented by the structure ##STR2## an alkali metal cyanide and an alkali metal borohydride.
摘要:
Cyanohydrin esters are prepared by reacting an acyl cyanide represented by the structure ##STR1## with an acyl cyanide represented by the structure ##STR2## and an alkali metal borohydride.
摘要:
Antibiotic A-32390 complex, comprising factor A and other structurally related factors, is produced by cultivation of Pyrenochaeta sp. NRRL 5786 under submerged aerobic conditions, and isolated by extraction of the broth. Individual A-32390 factor A is separated by chromatography. The A-32390 complex, individual factor A and acyl ester derivatives of factor A inhibit dopamine-.beta.-hydroxylase and have antifungal, antibacterial, and hypotensive activity.
摘要:
A novel optically active compound suitable for use in a display mode utilizing a ferroelectric liquid crystal, and a chiral smectic liquid crystal composition containing the same are provided, which novel optically active compound is expressed by the formula ##STR1## wherein R represents an alkyl group of 2 to 15 carbon atoms; X represents CN group or a halogen atom; Y and Z each represent a halogen atom or hydrogen atom, but either one of Y and Z is hydrogen atom; l is 1 or 2; m is 0 or 1; and a symbol * shows that the carbon atom having this symbol attached thereto constitutes an optically active center.
摘要:
.alpha.-cyanoacrylate compounds expressed by the following general formula: ##STR1## wherein R.sup.1 designates --CH.sub.2 -- or ##STR2## and R.sup.2 designates alkyl groups, alkenyl groups or alkynyl groups of C.sub.1 to C.sub.4. These compounds are preferably synthesized by the reaction of the compounds expressed by the following general formula: ##STR3## wherein R.sup.1 and R.sup.2 are same as the above described, with formaldehyde products and then the depolymerization of the resulting dehydrating condensation polymers. These compounds are effectively used as fast-setting adhesives.
摘要:
Oxime-carbamates of fluorinated ketones of the formula ##STR1## in which X represents hydrogen or fluorine,R represents alkyl, cycloalkyl, phenyl or phenylalkyl, any of which can optionally be substituted,R.sup.1 and R.sup.2, which may be identical or different, each represent hydrogen, alkyl, alkenyl, alkynyl, halogenoalkyl, halogenoalkenyl, alkoxyalkyl, alkylthioalkyl or optionally substituted phenyl, andR.sup.2 can also represent the --SR.sup.3 grouping,R.sup.3 represents alkyl, halogenoalkyl, optionally substituted phenyl or alkoxycarbonyl, or represents a radical identical to that to which the --SR.sup.3 grouping is bonded, or represents the ##STR2## grouping, WHEREINR.sup.4 represents alkyl andR.sup.5 represents alkyl, dialkylamino or optionally substituted phenyl,And acid addition salts thereof, which possess insecticidal, acaricidal, nematicidal and fungicidal properties.
摘要:
This invention relates to novel 2-alkylamino-2-desoxyalditonitriles, salts thereof, their preparation, biocidal compositions containing them, and their utilization in the control of living organisms.