1. Alkyl definition, containing an Alkyl group

2. alkyl group, X represents sulphur or oxygen atom.

3. alkyl group and X?-¿ is a halogen anion.

4. The general formula for an Alkyl group is CnH2n+1, where n …

5. An Alkyl group is formed by removing one hydrogen from the alkane chain

6. In other systems, increases with increasing size of the alkyl group in n-alkane.

7. The smallest Alkyl group is methyl group which can be given as –CH 3.

8. The first two are classified as 1º-Amines, since only one alkyl group is bonded to the nitrogen; however, the alkyl group is primary in the first example and tertiary in the second

9. In order to quantitatively study the charge transfer occurring to or from the Alkyl group

10. Alkylated Naphthalene Structure R1 to R8 are independently a linear or branched alkyl group or hydrogen

11. Alkylate [al´kĭ-lāt] to cause the substitution of an alkyl group for an active hydrogen …

12. Alkylating agent and 1,4-addition process of an alkyl group onto an alpha, beta-unsaturated ketone compound

13. Transalkylation is a chemical reaction involving the transfer of an alkyl group from one organic compound to another.

14. The removal of this hydrogen results in a stem change from -ane to -yl to indicate an Alkyl group

15. Primary Alcohols In a primary alcohol, the carbon with the hydroxyl group is only attached to one alkyl group

16. The Alkyl group is a type of functional group that has a carbon and hydrogen atom present in its structure

17. What is a Ketal? Ketals are equivalent to Acetals and contain a carbon bonded to two O-R (R = alkyl group).

18. This Alkane is referred to as a branched‐chain Alkane because it contains an alkyl group off of the main chain

19. An Alkyl group is a paraffinic hydrocarbon group that may be derived from an alkane by dropping one hydrogen from the structure

20. An Alkene that has a single alkyl group attached to the sp 2 hybridised carbon atom of the double bond is monosubstituted

21. An Alkylating agent is any chemical substance that will add an alkyl group to another molecule in the chemical reaction known as alkylation

22. An Alkyl group is just a part of a molecule, made up of carbons and hydrogens, and it can have infinitely different structures

23. When the amyl group is a linear or normal (n) alkyl group, the resulting amyl nitrite would have the structural formula CH3(CH2)4ONO.

24. Alkyl Cycloalkanes are chemical compounds with an alkyl group with a single ring of carbons to which hydrogens are attached according to the formula

25. An Alkyl group is formed by removing one hydrogen from the alkane chain and is described by the formula C n H 2n +1

26. [ al´kĭ-lāt] to cause the substitution of an alkyl group for an active hydrogen atom in an organic compound; see also Alkylating agents

27. is a linear or branched alkyl group containing 1-15 carbon atoms or H, W is a linear or branched alkyl group containing 1-5 carbon atoms or H; excluding where R is alkoxy, A=B=D = phenyl, K=F, (k)=2, (l)=(n)=0, b=1, c=0, X=OOC, Y=OOC, Z=Cl, R¿1?

28. A simple Alkyl group is a functional group made up entirely of carbon and hydrogen where the carbon atoms are chained together by single bonds

29. Almost an unlimited number of derivatives can be made from the Alkanes since any hydrogen can be substituted by an alkyl group, a halide, etc

30. Alcohols with one to four carbon atoms are frequently called by common names, in which the name of the alkyl group is followed by the word alcohol:

31. An alkyl group is a piece of a molecule with the general formula CnH2n+1, where n is the integer depicting the number of carbons linked together.

32. Alcohol, any of a class of organic compounds characterized by one or more hydroxyl (―OH) groups attached to a carbon atom of an alkyl group (hydrocarbon chain).

33. 2¿, each independent of one another, represent a hydrogen atom, a halogen atom, a (C¿1?-C¿4?)-alkyl group, (C¿1?-C¿4?)-alkoxyl group, hydroxy-(C¿1?-C¿4?)-alkoxyl group, hydroxy group, nitro group, carboxyl group, sulfo group, amino group, said amino group can be substituted by (C¿1?-C¿4?)-alkyl group, or (C¿1?-C¿4?)-acyl groups, whereby the residuals R?

34. Hemiacetal definition is - any of a class of compounds characterized by the grouping C(OH)(OR) where R is an alkyl group and usually formed as intermediates in the preparation of Acetals …

35. From Wikipedia, the free encyclopedia A 17α-Alkylated anabolic steroid is a synthetic anabolic–androgenic steroid (AAS) that features an alkyl group, specifically a methyl or ethyl group, at the C17α position

36. Attached to the oxetane ring of technically relevant alkyl ketene dimers there is a C12 – C16 alkyl group in the 3-position and a C13 – C17 alkylidene group in the 4-position.

37. If the substituent is an alkyl group, then the derivative will have the same empirical formula as a larger Alkane, so the empirical formula for an organic compound is insufficient to identify it.

38. The common system is similar to that of Alkyl halides: name the Alkyl group attached to the OH group, ending with the suffix –yl, and add the word alcohol as a second word.

39. Alcohols may be considered as organic derivatives of water (H 2 O) in which one of the hydrogen atoms has been replaced by an alkyl group, typically represented by R in organic structures

40. The common system is similar to that of Alkyl halides: name the Alkyl group attached to the OH group, ending with the suffix –yl, and add the word alcohol as a second word.

41. 1¿ is an alkyl group with 8 to 14 C-atoms, G is a glycose unit and n is a number from 1 to 3, as surfactant auxiliaries in the pretreatment of textiles.

42. Other articles where Alkyl group is discussed: carbonium ion: Preparation and stability.: …system; and (4) protonation, or Alkylation (addition of an Alkyl, or hydrocarbon, group), of a carbon–carbon or carbon–hydrogen single bond

43. What are Alkylating agents? Alkylating agents are compounds that work by adding an alkyl group to the guanine base of the DNA molecule, preventing the strands of the double helix from linking as they should

44. The general formula of an Alkyl group can be given as C n H 2n+1 which is different from the formula of an alkane, C n H 2n+2 with the loss of a hydrogen atom

45. Alkylating agent definition is - a substance that causes replacement of hydrogen by an alkyl group especially in a biologically important molecule; specifically : one with mutagenic activity that inhibits cell division and growth and is used to treat some cancers.

46. Alkyl halides (RX, where R is an Alkyl group and X is F, Cl, Br, or I) are classified as primary, secondary, or tertiary according to the degree of substitution at the carbon to which the halogen is attached

47. An Aldehyde is a carbonyl-containing organiccompound in which the carbonyl carbon atomhas at least one hydrogen atom directly attachedto it.The remaining group attached to the carbonylcarbon atom can be hydrogen, an alkyl group, acycloalkyl group, or an aryl group (Ar)

48. The invention provides for an oral care composition which contains a non-cationic, water-insoluble or sparingly water-soluble antimicrobial agent, and an alkalimetal, ammonium or substituted ammonium alkylsulphate which contains a straight-chain, saturated or unsaturated C10 alkyl group.

49. Use of at least one phenylethanolaminotetraline of general formula (I): wherein A represents a (CI-C4)alkylene group, and R is hydrogen or a (CI-C4)alkyl group, or one of its pharmaceutically acceptable salts, for the preparation of a drug for treating anxiety disorders.

50. Amines are organic functional group where one of more hydrogen atoms of ammonia (NH 3) are replaced by alkyl or aryl groups.When alkyl group is attached with ammonia it is known as alkylAmines and when aryl group is attached it is known as arylamine.

51. In the formulae, R1 represents a hydrogen atom or a methyl group; R2 represents an alkyl group, an alkoxyl group or an alicyclic hydrocarbon group; p is a number of 0-3; q is a number of 1-3; and p and q satisfy p + q ≤ 5.

52. The invention relates to 9-(phosphonylmethoxyalkyl)Adenines of the general formula I ##STR1## wherein R 1 is a hydrogen atom, and alkyl group containing one to three carbon atoms, or a hydroxymethyl group, R 2 is a methylene, ethylene, propylene, ethylidene, methoxyethylene, benzyloxyethylene, tetrahydropyran-2-yloxyethylene, (1-ethoxyethoxy)ethylene or 1,2-O …

53. 3¿ represents one or more of a hydrogen atom, a lower alkyl group, a hydroxy group, a lower alkoxy group, a halogen atom, a nitro group, a lower alkylenedioxy group, a lower alkanoyloxy group, alower alkanoyl group, an amino group, a lower alkylamino group, a lower alkanoylamino group and a lower alkoxycarbonyloxy group, or $(1,5)$(CH¿2?)

54. [In the formula, R1 and R2 may be the same or different and each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted aralkyl group, or alternatively, R1, R2 and an adjacent carbon atom may combine together to form a substituted or unsubstituted alicyclic hydrocarbon ring; and X represents -CH2-, -CH2CH2-, an oxygen atom or a sulfur atom.]

55. [Solution] A lipophilic, highly branched polymer, and a photopolymerizable composition containing the same, obtained by polymerizing monomer A, which contains at least two radical polymerizable double bonds, and monomer B, which contains a C6‐30 alkyl group or C3‐30 alicyclic group and at least one radical polymerizable double bond, in the presence of a polymerization initiator C in an amount of 5 to 200 mol% in relation to monomer A.

56. A compound of the formula (I):whereinring A is a carbocyclic group, R1 is hydrogen or a halogen atom or a lower alkyl group,R2 is a di(lower)alkylamino group or N-containing heterocyclic group, among which the N-containing heterocyclic group may be substituted with one or more substituent(s),Y is an oxygen or sulfur atom, n is an integer from 0 to 2, andm is an integer from 0 to 4,or its prodrug, or their salt.which has poly(adenosine 5'-diphospho-ribose)polymerase inhibiting activity.

57. 5¿ together with the nitrogen atom to which they are attached form a heterocyclic ring; X represents O, S or NR wherein R represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group; m represents an integer in the range of from 1 to 6; and n represents an integer in the range of from 2 to 6; a process for preparing such a compound, a composition comprising such a compound and the use of such a compound and composition in medicine.

58. 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.

59. More specifically, the present invention relates to an acrylic emulsion adhesive comprising (a) an acrylic emulsion resin obtained by the polymerisation of: a monomer mixture comprising i) a (meth)acrylic acid ester monomer having a C1 to C14 alkyl group, ii) one or more monomer selected from the group consisting of allyl esters, vinyl esters, unsaturated acetates and unsaturated nitriles, iii) one or more monomer selected from the group consisting of unsaturated carboxylic acids and hydroxyl-group-containing unsaturated monomers, and iv) diacetone acrylamide; and a crosslinking agent, and (b) adipic acid dihydrazide, and the present invention relates to a production method for same.

60. The present invention relates to catalysts systems for the polymerization of ethylene and its mixtures with olefins CH2=CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising (A) a solid catalyst component comprising Ti, Mg, halogen, and optionally an electron donor compound in a donor/Ti molar ratio lower than 3, (B) an aluminum alkyl compound and (C) a silicon compound of formula XmR1nSi(OR2)4-(m+n) in which X is bromine or fluoride or a halogen containing hydrocarbon group, R1 is a C1-C1O aliphatic or alicyclic group, R2 is C1-C1O alkyl group, m is an integer ranging from 1 to 3, n is 0 or 1 provided that the sum m+n is not higher than 3.

61. The invention relates to a cosmetic cleaning agent which, in a cosmetic carrier, comprises (a) 1 to 6 wt % of at least one alkyl(ether) sulfate of the general formula R-(OCH2-CH2)x-O-SO3-X+, in which R represents a linear or branched, saturated or unsaturated alkyl group having 8 to 30 C-atoms, x represents one of the numbers 0 or 1 to 12 and X+ represents an alkali metal or an ammonium ion, and (b) 0.5 to 5 wt % of at least one amphoteric surfactant of the general formula (I), where R represents a linear or branched, saturated or mono- or polyunsaturated alkyl or alkenyl group having 8 to 24 carbon atoms, wherein the weight ratio of the surfactants (a) : (b) equals 1.5:1 to 1:1.2 and wherein the quantity specifications refer to the total weight of the cleaning agent.

62. What is described is a process for preparing 2-hydroxyacetals of the general formula in which R1 is hydrogen, a branched or unbranched C1-C12-alkyl radical, an electron-deficient, halogen-, NO2-, CN-, CF3-, acyl group- or branched or unbranched alkyl group-substituted or unsubstituted C5-C6-aryl or heteroaryl, and R2 is a branched or unbranched C1-C5-alkyl radical, or both R2 radicals are bonded directly to one another or to one another via a C1-C4 unit, by reacting an enol compound of the general formula (II) in which R3 is the same and R1 is as defined for formula (Ia), with bromine to give the corresponding dibromo adduct and then reacting this dibromo adduct with an alkoxide of the general formula (III) M-O-R2 (III) in which R2 is as defined for formula (Ia) and O is oxygen and M is lithium, sodium or potassium.

63. 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.