membered in English
adjective
['mem·bered || 'membə(r)d]
having limbs or members
Use "membered" in a sentence
1. Benzene is a six membered aromatic compound
2. • Most Ambiguinespossess a fused pentacyclicscaffold with a characteristic seven membered ring
3. The invention relates to a method of lithiating CH-acidic five-membered heterocycles whereby the five-membered heterocylce is reacted with metallic lithium in an ether-containing solvent in the presence of an H acceptor.
4. In Hantzsch–Widman nomenclature, an Azine is an heterocyclic compound containing a 6-membered aromatic ring
5. The Diels-Alder reaction is widely used to produce six-membered carbon rings from Alkenes and dienes
6. Herein, we report the synthesis of a cyclic (alkyl)(amino)Aluminyl anion based on a five-membered framework
7. Four Ambiguines, which are tetracyclic, the Ambiguines possess a fused pentacyclic scaffold featuring a characteristic seven-membered ring moiety
8. Herein, we report the synthesis of a cyclic (alkyl)(amino)Aluminyl anion based on a five-membered
9. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution reactions.
10. Cyclopropane is a highly strained three-membered carbocyclic ring (27 kcal mol − 1) that shows high reactivity with nucleophilic reagent
11. The reaction involves addition of a sulfur ylide to a ketone, aldehyde, imine, or enone to produce the corresponding 3-membered ring.
12. Polyalkene cyclization is a powerful synthetic method for the preparation of Alicyclic compounds containing certain combinations of five-, six- and seven-membered rings
13. Fructose Formation The open-chain form of fructose Cyclizes to a five-membered ring when the C-5 hydroxyl group attacks the C-2 ketone to form an intramolecular
14. Azines, which are six-membered aromatic compounds containing one or more nitrogen atoms, serve as ubiquitous structural cores of aromatic species with important applications in biological and materials sciences.
15. Cellos duo formed in 2011 - membered of Stjepan Hauser, born June 15, 1986 in Pula, Croatia and Luka Šulić, born August 25, 1987 in Maribor, Slovenia.
16. 223/ 00 Compounds containing amino and –CHO groups bound to the same carbon skeleton [5] 223/ 02 . having amino groups bound to acyclic carbon atoms of the carbon skeleton [5] 223/ 04 . having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of the carbon skeleton [5] 223/ 06 . having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton [5]
17. [des-Arg(9)]-Bradykinin is an eight-membered oligopeptide comprising Arg, Pro, Pro, Gly, Phe, Ser, Pro and Phe residues joined in sequence.It is an analogue of Bradykinin lacking the Arg residue at position 9
18. Azine definition, any of a group of six-membered heterocyclic compounds containing one or more nitrogen atoms in the ring, the number of nitrogen atoms present being indicated by a prefix, as in diAzine or triAzine
19. The invention relates to prodrugs of pharmacologically active, five-membered heterocyclic amidines from which in vivo compounds are obtained, these compounds being competitive inhibitors of trypsin-type serin proteases, especially thrombin and kininogenases such as kallikrein.
20. The aromatic hydrocarbons are the subject of this tutorial.Hydrocarbons (Alkanes, Alkenes, Alkynes and Aromatics) Benzene, the prototypical aromatic hydrocarbon is a six membered ring composed of six sp2 hybridized carbon atoms in a plane and sharing 6 pi electrons
21. Cycloalkanes: Ring Strain In 1885, the German chemist Adolf von Baeyer proposed that the instability of three- and four-membered rings was due to angle strain.Ideally, an sp3 hybridized carbon has bond angles of 109.5°
22. The analysis of 1H-NMR (nuclear magnetic resonance) and 13C-NMR spectroscopy, DEPT experiment, and two-dimensional NMR spectral data revealed that the antibiotic is a macrolide antibiotic having a 26-membered alpha, beta-unsaturated macrolactone ring with a conjugated diene fused to a bicyclic spiroketal.
23. Pesticidal 1,4-diaryl-2,3-difluoro-2-butene compounds of formula (I) wherein Ar is phenyl, 1- or 2-naphtyl or a 5- or 6-membered heteroaromatic ring all of which aromatic systems may be optionally substituted; is C2-C6-alkenyl, C4-C6-cycloalkenyl or C1-C2-alkoxy-C2-C6-alkyl; and Ar1 is phenoxyphenyl, phenyl, biphenyl, phenoxypyridyl, benzylpyridyl, benzylphenyl, benzoylphenyl, 1- or 2-naphthyl, or a 5 or 6-membered heteroaromatic ring all of which aromatic systems may be optionally substituted, intermediates and methods for the preparation of compounds of formula (I) and compositions and methods comprising the compounds and compositions for the control of insect and acarid pests.
24. The rhodium(I)-catalyzed enantioselective hydrogenation of E- and Z-configured β-Acylamido β-alkylacrylates as well as of isomeric mixtures has been investigated.As ligands 1,2-bisphospholanes like DuPHOS, BPE and Me 4-BASPHOS have been tested, but also diphosphines forming seven-membered chelates such as DIOP.The effect of additional oxy groups in the …
25. 455/ 00 Heterocyclic compounds containing quinolizine ring systems, e.g. emetine alkaloids, protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine [2] 455/ 02 . containing not further condensed quinolizine ring systems [2] 455/ 03 . containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine [3] 455/ 04 . . containing a quinolizine ring system condensed with only one six-membered carbocyclic ring, e.g. julolidine [2,3] 455/ 06 . . . containing benzo [a] quinolizine ring systems [2,3] 455/ 08 . . . . having an isoquinolyl-1, a substituted isoquinolyl-1 or an alkylenedioxyisoquinolyl-1 radical linked through only one carbon atom, attached in position 2, e.g. emetine [2,3]
26. Novel therapeutically active adenosine derivatives of general formula (I) wherein (a) is the residue of a 4- to 7-membered heterocycle containing at least one nitrogen heteroatom, said heterocycle being substituted with the group -Y-Z; X is halogen, amino, C¿1-6?-alkoxy, C¿1-6?-alkylthio or C¿1-6?-alkylamino; A is hydroxymethyl or halomethyl; Y is oxygen, sulphur, sulphinyl or sulphonyl; and Z is a five- or six-membered heterocycle, optionally substituted by C¿1-6?-alkyl, C¿1-6?-alkoxy, C¿1-6?-alkylthio or C¿1-6?-alkylamino; and pharmaceutically acceptable addition salts thereof, and their pharmaceutical compositions as well as methods for using the compounds in the treatment of myocardial and cerebral ischaemia and epilepsy.
27. Explanation: The linear for of glucose that Cyclizes is called Hemiacetal because it is a compound that is formed by attack of hydroxyl group when the carbon atom bind to hydroxyl group and also to aldehyde group or ether which is normally called anomeric carbon in carbohydrates, these therefore make the glucose to become cyclical and it is a six membered ring also called
28. Calcitonin is a 32-membered heterodetic cyclic peptide comprising the sequence Cys-Ser-Asn-Leu-Ser-Thr-Cys-Val-Leu-Gly-Lys-Leu-Ser-Gln-Glu-Leu-His-Lys-Leu-Gln-Thr-Tyr-Pro-Arg-Thr-Asn-Thr-Gly-Ser-Gly-Thr-Pro-NH2 cyclised by a disulfide bridge between the two Cys residues at positions 1 and 7.It has a role as a metabolite and a bone density conservation agent.
29. A method of masking the off-taste of an artificial or natural sweetener, comprising the addition to the sweetener of at least one compound according to the formula (I), in which R1 is selected from H, C1-C4 alkyl and Ph; R2 is selected from H and Me; R3 is selected from H, C1-C4 alkyl and Ph; R4 is selected from H and C1-C4 alkyl: or R3, R4 together form a five, six or seven-membered aliphatic ring.
30. Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen [4] . having a carbon chain of less than 30 atoms [4] . . Hydroxy compounds [4] . . . having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms [4] . . . . containing at least 2 hydroxy groups [4] . . . having hydroxy groups bound to a carbon atom of a six-membered aromatic ring [4] . . . . with condensed rings [4] . . . . containing at least 2 hydroxy groups [4] 226 226 226 226 226 226 226 226
31. The invention relates to the use in non-linear optics of azo dyes of formula I and the use of polymers containing azo dyes which include as characteristic monomer units bivalent groups derived from an azo dye of formula (I) wherein: D represents the residue of a diazo component derived from an aniline or from a five-membered aromatic heterocyclic amine whose heterocyclic ring includes one to three heteroatoms chosen from the group nitrogen, oxygen and sulphur and which can be anellated by a benzene, thiophene, pyridine or pyrimidine ring; R?
32. is H, C¿1-4?-alkyl, C¿2-4?-alkenyl, C¿2-4?-alkynyl or C¿1-4?-alkylidene, wherein the alkyl, alkenyl, alkynyl or alkylidene group may be substituted with 1 to 3 halogen atoms independently chosen from the group of fluorine or chlorine atoms; E represents together with carbon atoms 16 and 17 of the steroid skeleton a four to seven-membered ring, said ring being $g(a) and in cis-configuration with respect to the steroid skeleton, optionally comprising one or two endocyclic bonds; or a prodrug thereof.
33. The present invention relates to a compound of formula (I), wherein A represents an optionally substituted phenyl or a 5- or 6-membered heteroaromatic ring system containing up to 4 heteroatoms selected from O, S and N, B represents a single bond, O, S or NR1, wherein R1 is selected from hydrogen or a C1-C6-alkyl group; L represents a linker; C represents an amino moiety; n represents 0 or 1; m represents 0, 1, 2, 3, 4, 5 or 6; X represents O or S; and Y represents hydrogen or an optionally substituted carbon moiety; and to stereoisomers, pharmaceutically acceptable salts or esters, or prodrugs thereof.
34. The invention relates to an N-heterocyclic carbene complex of general formulas I to IV (I) (II) (III) (IV), according to which A1 stands for NR2 or PR2, A2 stands for CR2R2', NR2, PR2, O or S, A3 stands for N or P, and C stands for a carbene carbon atom, ring B is an unsubstituted or a mono or poly-substituted 5 to 7-membered ring, substituents R2 and R2' stand, inter alia, for a linear or branched C1-C10-alkyl group and, if A1 and A2 each stand for NR2 or PR2, are the same or different, M in formulas I, II, III or IV stands for Cr, Mo or W, X1 or X2 in formulas I to IV are the same or different and represent, inter alia, C1-C18 carboxylates and C1-C18-alkoxides, Y is inter alia oxygen or sulphur, Z is inter alia a linear or branched C1-C10-alkylenoxy group, and R1 and R1' in formulas I to IV are, inter alia, an aliphatic or aromatic group.