摘要:
A novel class of cationic phospholipids and novel method for their synthesis are disclosed. The class of phospholipids comprises phosphotriester derivatives of phosphoglycerides and sphingolipids. It has been unexpectedly found that liposomes comprising one or more of these cationic phospholipids are effective in the lipofection of nucleic acids. These novel phospholipids are particularly attractive because of they are not only effective in lipofection, but are extremely cheap and easy to make.
摘要:
New phosphoric ester having the following formula (I) and a method for the analysis of an alkaline phosphatase, using the phosphoric ester as a substrate: ##STR1## wherein M is a hydrogen atom or an alkali metal atom; A is phenyl, naphthyl, 2- or 4-pyridyl, 2- or 4-pyrimidyl, pyrazinyl, sym-triazinyl, 2-imidazolyl, 2-oxazolyl, 2-thiazolyl, or sym-thiadiazolyl group which may or may not be substituted with other substituent(s) or may form a condensed ring together with a benzene ring, if possible; B is paraphenylene group or may form naphthylene group by condensation together with a benzene ring, said groups may or may not be substituted with other substituent(s).
摘要:
Novel benzoxazole compounds of the formula ##STR1## wherein R.sub.1, R.sub.2 and A are certain substituents, a process for their manufacture as well as their use as optical brighteners are disclosed.
摘要:
1,3-Butadienes which are substituted at both terminal carbon atoms with phenyl, naphthyl, theinyl or furyl groups or one benzoxazolyl group are useful as optical brighteners for detergents. The butadienes, some of which are known, can be obtained by HORNER syntheses.
摘要:
3-(O,O-Diethyldithiophosphorylmethyl)-6-chloro-benzoxazolone (known as ''''phosalone''''), which possesses insecticidal and acaricidal properties, is prepared by a new process which comprises condensing an alkali metal or the ammonium salt of O,Odiethyldithiophosphoric acid, formaldehyde and 6chlorobenzoxazolone in the presence of methanesulphonic acid.
摘要:
Benzisoxazolo(thiono)phosphoric(phosphonic)acid esters of the general formula
IN WHICH R is a lower alkyl radial, R1 is a lower alkyl or alkoxy radical, and X is an oxygen or sulfur atom, WHICH POSSESS INSECTICIDAL, ACARICIDAL, NEMATOCIDAL AND, IN SOME CASES, FUNGICIDAL PROPERTIES.
摘要:
WHEREIN R5 represents a C1-C4-alkyl radical together with bromotrichloromethane and a compound R-OH. R represents any aliphatic, araliphatic or aromatic radical or the radical of an enolised compound or R-OH represents an optionally substituted oximino compound or hydroxylamine.
WHEREIN R3 and R4 represent identical or different C1-C4 alkyl radicals and X represents an oxygen atom or the direct P-R3 bond, can be manufactured under mild conditions by reacting
Phosphoric or phosphonic acid esters of the formula
摘要:
VINYL PHOSPHATE DERIVATIVES,INCLUDING PARTICULARLY COMPOUNDS OF THE FORMULA
1-(R2-O-P(=O)(-R1)-O-C(=CH-CL)-)PYRROLIDIN-2-ONE
IN WHICH (A) R1 IS METHOXY AND R2 IS METHYLOT (B) R1 IS ETHOXY AND R2 IS ETHYL, ARE USEFUL AS PESTICIDAL AGENTS, PARTICULARLY IN THE CONTROL OF INSECTS AND NEMATODES.
摘要:
THE PRESENT INVENTION RELATES TO NEW, BROAD-SPECTRUM PHOSPHATES, THEIR PROCESS FOR THE MANUFACTURE AND THEIR USE, EITHER PER SE OR IN PREPARATIONS IN THE CONTROL OF NEMATODES, INSECTS AND PESTS BELONGING TO THE ORDER OF ACARINA AT ALL STAGES OF DEVELOPMENT. THESE COMPOUNDS ARE ALSO EFFECTIVE AGAINST UNDESIRED PLANT GROWTH, BACTERIA AND FUNGI, AND ALSO AGAINST GASTROPODS. THEY ALSO HAVE A CHEMOSTERILIZING ACTION ON INSECTS.