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Kefalas AS
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Kefalas AS
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Publication of ES259633A1publicationCriticalpatent/ES259633A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Abstract
A method for the preparation of thioxanthenes of the general structural formula ** (See formula) ** in which R is chosen from the group consisting of allogene and methoxy and in which R1 and R 2 designate each a radical chosen from the group consisting of hydrogen and lower alcohol and such other members of the group in which R1 and R2 together with the atom of Nitrogen represents the radical of a saturated heterocyclic amine chosen from heterocyclic amines with 5 and 6 members and acid addition salts thereof, said thioxanthene product of the formula Yio containing either a different relative proportion of geometric isomers than the original thioxanthene or a -NR1H2 group different from the thioxanthene of origin which comprises mixing and reacting a thioxanthene of origin having the same general structural formula as (I) above with an amine of the formula H-NR1 R2 where R1 and R2 are, as stated above a said amine being chosen from (a) amines in which R1 and R2 are the same as in the original thioxanthene (b) amines in which at least one of R1 and R2 is different from the original thioxanthene and boils higher than the amine H-NR1 R2 in which R1 and R2 are the same as in the origin thioxanthene (c) amines in which at least 1 of R1 and R2 is different from that of the original thioxanthene and contains at most only one less carbon atom than the amine H-NR1R2 in that R1 and R2 are the same as in the source thioxanthene to produce a thioxanthene product containing a different relative proportion of geometric isomers than the starting thioxanthene when the amine is as defined in (a) and to produce a thioxanthene product that has a different -NR1R2 group than the original thioxanthene when the amine is as defined nest in (b) and (c) and separate the resulting thioxanthene or an acid addition salt thereof if desired as individual isomers. (Machine-translation by Google Translate, not legally binding)
ES0259633AA method for the preparation of thioxanthenes (Machine-translation by Google Translate, not legally binding)
ExpiredES259633A1
(en)
A procedure for the production of compounds of 4-amino-polychloro-2- (tricloromethyl) pyridine (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of a composition for the modification of the development of plants and parts of plants (Machine-translation by Google Translate, not legally binding)