1. Drill: Give the molecular formula & the condensed, skeletal, and complete structures of a hydrocarbon with the same # of carbons as the # of letters in your first name.

2. Branched Alkanes

3. Any hydrogen in a hydrocarbon chain can be substituted with another hydrocarbon group

4. H H H H-C-C-C-H H H H propane

6. H H H H-C-C-C-H H CH 3 H _____ propane

7. Substituents The name for the hydrocarbon group that replaced the hydrogen

8. Substituents The substituted hydrocarbon group is called an alkyl group Suffix: -yl: hydrocarbon group

9. Branched Chains When an alkane chain gets another hydrocarbon group substituted onto it Branches: sidechains

10. Branched Chains C C C C C C C C C C

11. Naming Branched Chains

12. Drill: Name Each: H 3 C-CH 2 -CH 3 C-C-C-C-C

13. 1) Find the longest continuous carbon chain & name it as the main chain. The final name will end with the naming of the main chain

14. CHexane C C C

16. 2) Number each carbon in the chain; so that, the side chains will be connected to the lowest possible numbers on the carbons

17. CHexane C 1 C 2 C 3 C 4 C 5 C 6 C C C

18. 3) Name the side chains or substituted groups, & precede them with the # of the carbon they are connected to & a dash

19. C 2-methyl C 1 C 2 C 3 C 4 C 5 C 6 C C C 2-methyl 4-ethyl

20. 4) If identical groups appear more than once, use prefixes: di for 2, tri for 3, tetra for 4, penta for 5, etc Examples: dimethyl, tripropyl, etc

21. C 2,2-dimethyl C 1 C 2 C 3 C 4 C 5 C 6 C C C 4-ethyl

22. 5) Name the sidechains or groups in alphabetical order, but ignore the prefixes when doing so ·Examples: ethyl comes before dimethyl, e < m

23. 6) Separate numbers with commas, use hyphens between words & numbers, and write the alkanes as one word ·Example: dimethylhexane

24. C C C C 4-ethyl-2,2-dimethylhexane

25. ORG HW Draw both skeletal & condensed structures for an 8-carbon chain with 1- carbon & 2-carbon branches and name it.

26. Name the organic compound on the board

27. Drill: Name CH 3 CH 2 H 3 C-CH-CH 2 -CH-CH-CH 3 CH 3 CH 2 CH 3

28. 4-ethyl-2,5- dimethylheptane CH 3 CH 2 H 3 C-CH-CH 2 -CH-CH-CH 3 CH 3 CH 2 CH 3

29. Name the organic compound on the board

30. Deriving Structures from Names Draw the main chain first –Look to the name ending Draw the branches –Look to the # & group name

31. Draw: 3,4-diethyl-2-methyloctane 2,3,5-trimethylhexane 5-butyl-3-ethyl-2,6,8- trimethyl-4-propyldecane

32. Drill: Draw: 5-butyl-3-ethyl- 2,6,8,9-tetramethyl- 4,7-dipropyldecane

33. Isomers Compounds that have the same chemical formula, but different shapes

34. Types of Isomers Structural or skeletal Geometric or cis/trans Functional Positional Optical

35. Structural Isomers When there are differences in the carbon chains

36. Structural Isomers C-C-C-C-C C C-C-C-CC-C-C CC

37. Structural Isomers C-C-C-C-C C C-C-C-CC-C-C CC

38. Structural Isomers Pentane methyldimethyl butanepropane

39. Draw & name all the possible structural isomers for C 7 H 16

40. Organic HW: Draw & name all the possible structural isomers for C 6 H 14

41. Drill: Name: C-C-C C C-C-C-C-C-C-C C C-C

42. C-C-C C C-C-C-C-C-C-C C C-C

43. 3,5-diethyl-3,5- dimethyloctane

44. Test _____day

45. Drill: Name & describe 5 organic prefixes & 4 organic suffixes

46. Test on Alkanes tomorrow

47. Review

48. Identify Organic terms Organic prefixes Organic suffixes

49. Name: H 3 C-CH-CH 2 -C-CH 2 -CH 3 CH 3 -CH 2 CH 3 CH 3 -CH 2

50. H 3 C-CH-CH 2 -C-CH 2 -CH 3 CH 3 -CH 2 CH 3 CH 3 -CH 2

51. 3-ethyl-3,5-dimethylheptane H 3 C-CH-CH 2 -C-CH 2 -CH 3 CH 3 -CH 2 CH 3 CH 3 -CH 2

52. Name: C-C-C-C-C-C-C-C-C C-C C C CC

53. C-C-C-C-C-C-C-C-C C-C C C CC

54. C-C-C-C-C-C-C-C-C C-C C C CC 6,7-diethyl-3,4,7-trimethyldecane

55. Name:

57. 5-ethyl-2,4,6,7- tetramethylnonane

58. Name:

60. 5-butyl-2,3,7,8-tetramethyl-6-propyldecane

61. Draw the complete structure of: 3-ethyl-2-methylpentane

62. Draw the condensed structure of: 3-ethyl-2,4,5-trimethylhexane

63. Draw a skeletal structure of: hexamethylpentane

64. Draw a stick structure of: 5-butyl-3-ethyl-2,4,6,8- tetramethyl-4-propyl decane

65. Draw & Name isomers of: C 8 H 18

66. Draw an optical isomer of: C-C-C-C-C-C-C C C C