Abstract: Novel thioxanthonecarboxylic acids and thioxanthonecarboxylic acid derivatives of the formula I ##STR1## in which Y is --COOH, --CO-halogen, --CN or a carboxylic acid ester, thioester or amide group and X, Z and W are as defined in the patent claim, are described. The compounds of the formula I in which Y is other than --CO--halogen are suitable as sensitizers for photo-crosslinkable polymers or as initiators for photo-polymerization of ethylenically unsaturated compounds or for photo-chemical crosslinking of polyolefins. The acid halides of the formula I are starting materials for the preparation of the corresponding nitriles and carboxylic acid esters, thioesters and amides.

Abstract: Thioxanthone carboxylic acid esters, thioesters and amides with reactive functional groups of the formula ##STR1## in which X, Y, Z, n and Q are as defined in the patent claim and Q is, for example, --OCH.dbd.CH.sub.2, --OCH.sub.2 CH.dbd.CH.sub.2, --SCH.sub.2 CH.dbd.CH.sub.2 or --NHCH.sub.2 CH.dbd.CH.sub.2 (n=1), --OH, --SH, --NH.sub.2, --COOH, --COCl or --OCO--C(R").dbd.CH.sub.2, in which R" is methyl or hydrogen (n=2), are suitable for the preparation of polymers with thioxanthone radicals in side chains. The compounds (I) and also the polymers which can be prepared therefrom can be employed as sensitisers for photocrosslinkable polymers or as initiators, if desired in a mixture with amines, for the photopolymerisation of ethylenically unsaturated compounds or for the photochemical crosslinking of polyolefines.

Abstract: A compound of the formula: ##STR1## wherein A.sub.1 is a single bond or a C.sub.1 -C.sub.5 alkylene group bonding at the 2-, 2'- or 3-position, A.sub.2 is a C.sub.1 -C.sub.3 alkylene group, A.sub.3 is a C.sub.1 -C.sub.4 alkylene group, X is --O-- or --SO.sub.n -- and B is a carboxy group, a C.sub.2 -C.sub.5 alkoxycarbonyl group, a cyano group, an amino group of the formula: ##STR2## or a carbamoyl group of the formula: ##STR3## which is useful as an antiviral agent with no side effect.

Abstract: The present invention relates to a photopolymerization process comprising irradiating a photopolymerizable material with U.V. light of wave length 250 to 400 nm in the presence of a photosensitizing amount of a photoinitiator of formula I, ##STR1## in which R is hydrogen or halogenR.sub.1 is alkyl, cycloalkyl, benzyl, optionally substituted phenyl or (a) ##STR2## either R.sub.2 is optionally substituted alkyl, benzyl, C.sub.6 H.sub.5 --CH.dbd.CH--, 2-thienyl, 2-furyl, 2-(3-chloro)benzothienyl or optionally substituted phenyl, andR.sub.3 is hydrogen or R.sub.2 and R.sub.3 form a radical of formula (b) ##STR3## in which X is a direct bond, --O--, --S--, --CH.sub.2 --, ##STR4## and R.sub.4 and R' have one of the significances of R.sub.2 and R, respectively,with the proviso that when R.sub.1 is (a) R.sub.3 is hydrogen and R.sub.2 and R.sub.4 are free from halogen atoms.

Abstract: Isothiochromans are described. The compounds possess hypotensive and antipsychotic properties; methods and compositions using them are described.

Abstract: The present invention relates to novel thioxanthene and xanthene derivatives which have useful pharmacodynamic activity, such as neuroleptic activity and antiemetic activity, methods for the preparation of said derivatives, pharmaceutical compositions containing same, and a method for the treatment of psychic disorders by administering a therapeutically active amount of one of said derivatives to a living animal body, including human beings.

Abstract: N-Substituted N-carboxyanhydrides of .alpha.-amino acids, useful in peptide syntheses, and peptide synthesis process using such compounds, are disclosed. The N-substituent is penta(lower alkoxy)benzyl, or optionally substituted 9-xanthyl, 9-thioxanthyl or 9-selenoxanthyl.

Abstract: The invention relates to 2-(4'-chloro-phenylthio)-benzonitrile, to its process of preparation and to its use for preparing 2-chlorothioxanthone.2-Chloro-thioxanthone prepared from the compound of the invention is useful as a photoinitiator for the reticulation of synthetic resins and as an intermediate for preparing pharmaceuticals.

Abstract: There are described compounds of formula I, ##STR1## in which an adjacent pair of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 form a chain --COCH.dbd.CE--O--, and the remainder of R.sub.5, R.sub.6, R.sub.7 and R.sub.8, which may be the same or different, each represent hydrogen, hydroxy, alkyl, halogen, alkenyl, alkoxy, or --NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2, which are the same or different, are each hydrogen or alkyl, andE is --COOH, a 5-tetrazolyl group or an (N-tetrazol-5-yl) carboxamido group,and pharmaceutically acceptable derivatives thereof.There are also described processes for making the compounds and pharmaceutical, e.g. anti-allergic, compositions containing them.

Abstract: Certain substituted cycloalkenochromones and pharmacologically acceptable salts thereof are disclosed as being useful in the treatment of allergies. The compounds have the structure: ##STR1## X is --O--, --S--, or --SO.sub.2. Y is from 1 to 4. R.sub.1 is H or alkyl, and R.sub.2 is H, alkyl, aryl, carboxyl, alkoxy, aralkoxy, or alkoxycarbonyl. When R.sub.1 is alkyl, R.sub.2 is hydrogen, alkyl or aryl. At least one of R.sub.2 and R.sub.3 is alkoxycarbonyl, carboxyl or tetrazolyl. R.sub.3 is carboxyl, alkylthio, alkylsulfonyl, alkylsulfinyl, alkoxycarbonyl, or tetrazolyl.

Abstract: Isochromans, isothiochromans, 2-benzoxepins, and 2-benzothiepins are described. These compounds are useful for preparing corresponding amino derivatives that possess antihypertensive and CNS activity.

Abstract: Compounds of formula I ##STR1## in which R.sup.1 is hydrogen, halogen, nitro, trifluoromethyl, lower alkyl or lower alkoxy; R.sup.2 is hydrogen or lower alkyl; R.sup.3 is hydroxy, 1H-tetrazol-5-yl or COOR.sup.4 wherein R.sup.4 is hydrogen or lower alkyl, and X is O, S, SO or SO.sub.2, are disclosed. The compounds of formula I are useful for treating allergic conditions. Methods for the preparation and use of the compounds are disclosed.

Abstract: 1-Alkoxyethanol-isochromas, -isothiochromas, -2-benzoxepins, and -2-benzothiepins are described. These compounds are useful for preparing the corresponding aminoalkoxyalkyl derivatives that possess antihypertensive and CNS activity.