摘要:
A substrate (e.g., a cycloalkane, a polycyclic hydrocarbon, an aromatic compound having a methyl group) is oxidized with oxygen in the presence of an oxidation catalytic system comprising an imide compound of the following formula (1) (e.g., N-hydroxyphthalimide) and a co-catalyst containing a element selected from Group 3 to 12 elements (in particular, Group 4 to 11 elements) of the Periodic Table of Elements. The co-catalyst comprises a compound containing plural elements (except heteropolyacid and a combination of Group 7 and 8 elements of the Periodic Table of Elements), and is useful for the formation of an oxide (e.g., a ketone, an alcohol, a carboxylic acid): ##STR1## wherein R.sup.1 and R.sup.2 represent a substituent such as a hydrogen atom or a halogen atom, or R.sup.1 and R.sup.2 may together form a double bond or an aromatic or nonaromatic 5- to 12-membered ring, X is O or OH, and n is 1 to 3.
摘要:
The compounds of formulaa. ##STR1## wherein symbol X represents a --CHO group or a group of formula ##STR2## in which symbols R', taken separately, represent each a C.sub.1 to C.sub.4, linear or branched, saturated or unsaturated alkyl radical, or taken together represent a substituted or unsubstituted C.sub.2 to C.sub.4 alkylene radical; symbol R.sup.2 represents a hydrogen atom or a methyl radical; and R.sup.1 and R.sup.3 are different and represent each a hydrogen atom or a methyl radical;or of formulab. ##STR3## wherein the tert-butyl radical is located in position 5 or 6 of the aromatic ring and, either Y represents hydrogen and X and R.sup.2 have the meaning indicated above, or X and R.sup.2 represent each a hydrogen atom and Y represents a --CH.sub.2 CHO group or a group of formula ##STR4## in which R' is defined as in a.; or of formulac. ##STR5## wherein X and R.sup.2 have the meaning indicated in formula (Ia) and R represents a hydrogen atom or a methyl radical, the groups R being identical or different, are useful as perfuming ingredients for the preparation of perfuming compositions and perfumed articles to which they impart floral odor notes.
摘要:
New geminally disubstituted indenes are of general formula I ##STR1## wherein each of R.sup.1 and R.sup.2 is hydrogen or R.sup.1 and R.sup.2 together form a direct bond or an alkylene group --(CH.sub.2).sub.n --, in which n is an integer from 1 to 4, R.sup.3 is hydrogen, C.sub.1-3 -alkoxy or halogen, and each of R.sup.4 and R.sup.5 is hydrogen or C.sub.1-4 -lower alkyl, or R.sup.4 and R.sup.5 together form an alkylene group --(CH.sub.2).sub.m --, in which m is an integer from 3 to 6; and the corresponding amine oxides, quaternary ammonium compounds and salts with physiologically acceptable acids.The indenes find use in treating incontinence, as a mucous membrane decongestant, as a blood pressure reducing agent, as vasocostrictor or as an anti-reserpine agent.The indenes may be prepared by processes known per se involving(a) synthesing the side chain --CH(OH)CH.sub.2 NR.sup.4 R.sup.5 by a method known per se in an indenyl precursor of a formula I compound in which the side chain is incomplete or(b) introducing the double bond into an indanyl precursor of a formula I compound in which the double bond is absent or(c) releasing the terminal amino group in a precursor of a formula I compound in which the terminal amino group is protected.
摘要:
Described are methods for preparing a deuterated aldehyde using with a photocatalyst and a hydrogen atom transfer agent in a H2O free solvent comprising D2O and an organic solvent under an inert gas. The methods may be used to convert a wide variety of aldehydes (e.g., aryl, alkyl, or alkenyl aldehydes) to C-1 deuterated aldehydes under mild reaction conditions.
摘要:
Derivatives of benzocycloalkenyldihydroxyalkanoic acids, inhibitors of HMG CoA reductase, antagonists of thromoboxane A.sub.2 receptors and antifungals, denoted by the formula I ##STR1## in which X=CH.sub.2, O or S; R.sub.1 and R.sub.2, identical or different, =H, C.sub.1-3 alkyl or together from a --(CH.sub.2).sub.n -- chain (n=4,5) optionally substituted symmetrically by one or two C.sub.1-3 alkyl radicals.R.sub.3 and R.sub.4, identical or different, =H, CF.sub.3, halogen (Cl, F, Br), C.sub.1-5 N,N-dialkylamino, C.sub.1-4 alkyl, C.sub.1-5 -alkoxy, C.sub.1-3 alkylthio, or phenyl optionally substituted by at most two substitutents which may be identical or different and may denote C.sub.1-3 alkyl or C.sub.1-3 alkoxy radicals or halogens (F, Cl), it being understood that when one of R.sub.3 and R.sub.4 denotes the radicals: CF.sub.3, N,N-dialkylamino, C.sub.6 H.sub.5 or substituted phenyl, it is present at the vertices 3', 4'or 5' according to formula 1 and the other denotes a hydrogen atom.R.sub.5 and R.sub.6, (which may be identical or different)=H, halogen (F, Cl, Br), CF.sub.3, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, C.sub.6 H.sub.5, optionally substituted by at most two substitutents which may be identical or different and may denote radicals: C.sub.1-3 alkyl or C.sub.1-3 alkoxy or halogen atoms (F, Cl), on condition that when one of R.sub.5 and R.sub.6 =CF.sub.3, C.sub.6 H.sub.5 or substituted phenyl, it is present at the vertex 6 or 7 and the other denotes a hydrogen atom.The substitutents R.sub.3 and R.sub.4 or R.sub.5 and R.sub.6 may also together form, on condition of being at two contiguous vertices, diradicals of formulae: --CH.dbd.CH--CH.dbd.CH--, --(CH.sub.2).sub.m -- and --O(CH.sub.2).sub.p O--, in which m=3 or 4, p=1 or 2, it being understood that when R.sub.3 and R.sub.4 or R.sub.5 and R.sub.6 form the chain sequence --O(CH.sub.2).sub.p O--, the latter is linked to the vertices 3' and 4' or 4' and 5' or 6 and 7 according to the formula 1.R.sub.7 and R.sub.8 =H or, together with the existing C--C bond, form a double bond of trans geometry; R.sub.9 and R.sub.10 =H or together form a C.sub.1-3 dialkylmethylene residue.In the form of free acids, salts, esters, amides or .delta.-lactones.Hypocholesterolaemiant, antithrombotic and antifungal medications containing them.
摘要:
This disclosure describes anthracene-9,10-bis-carbonyl-hydrazones and derivatives thereof useful as antibacterial agents, for inhibiting the growth of transplanted mouse tumors, and for inducing the regression and/or palliation of leukemia and related cancers.
摘要:
This disclosure describes 9,10-dihydroanthracene-9,10-dicarboxaldehyde-bis-hydrazones and derivatives thereof useful as antibacterial agents, for inhibiting the growth of transplanted mouse tumors, and for inducing the regression and/or palliation of leukemia and related cancers in mammals.
摘要:
This invention relates to a method of producing a dibenzocycloheptene compound of the structure ##STR1## in high yields which comprises: (a) hydrogenating an anthracene derivative in the 9,10 position to form a 9,10-dihydroanthracene derivative, (b) selectively mono-carbonylating one of the hydrogens in the 9,10 position to form a monoaldehyde, (c) reducing the aldehyde to form the corresponding alcohol and (d) dehydrating and expanding the center ring to form the dibenzocycloheptene compound.
摘要:
1-AMINOALKYL-BENZCYCLOALKANE-2-SPIROCYCLOALIPHATIC COMPOUNDS, E.G. THOSE OF THE FORMULA
(-B-)>C ALK=LOWER ALKYLENE AM=AN AMINO GROUP R=H OR OH; M=1-3 B=LOWER ALKYLENE OR ALKENYLENE ACYL AND 1-DEHYDRO DERIVATIVES, N-OXIDES, QUARTERMARIES AND SALT THEREOF EXHIBIT ANALGETIC EFFECTS.
摘要:
A process for extracting polyester from an article using a solvent system comprising a compound according to any of general Formula I to VI wherein R1 and R2 are each independently selected from: hydrogen, alkyl, alkenyl, alkynyl, aryl or alkoxy groups; R3 to R12 are each independently selected from: hydrogen, alkyl, alkenyl, alkynyl, aryl or alkoxy groups; X is selected from O or S; and each of a to e is a carbon atom, wherein the total linear chain length of a-b-c-d-e is in the range of 2 to 5 carbons; R13 and R15 are both independently aryl groups; R14, R16, R17, R18 and R19 are each independently selected from hydrogen, alkyl, alkenyl, alkynyl or aryl groups; n is an integer in the range of 1 to 8; m is 3; and 1 is an integer in the range of 1 to 3; or combination thereof.
摘要翻译:一种使用包含根据通式I至VI中任一项的化合物的溶剂体系从制品中提取聚酯的方法,其中R 1和R 2各自独立地选自:氢,烷基,烯基,炔基,芳基或烷氧基; R 3至R 12各自独立地选自:氢,烷基,烯基,炔基,芳基或烷氧基; X选自O或S; a至e中的每一个为碳原子,其中a-b-c-d-e的总线性链长度为2〜5个碳的范围; R 13和R 15独立地为芳基; R 14,R 16,R 17,R 18和R 19各自独立地选自氢,烷基,烯基,炔基或芳基; n为1〜8的整数, m为3; 1为1〜3的整数, 或其组合。