Question

Can you also explain the rules for these types of problems with 2 cyclo like which is the parent chain and which gets the priority numbering? And also what does the (4,4,0) or (6,6,0) mean? Thank you

Practice Problem 04.36 Provide a systematic name of the following compound: 2,3,5,9-tetramethylbicyclo[4.4.0]decane 1,3,4,7-tetramethylbicyclo[6.6.0]decane 1,3,4,7-tetramethylbicyclo[4.4.0]decane 2,3,5,9-tetramethylbicyclo[6.6.0]decane

Answer 1

Answer to the problem No. of C-atom that link up two bridge head a abom Carbon = 4 (Left Side) Bridge head altom) Carbon . 4 (Right Side) o (Topo Side) Total Carbon atom = 10 (decane) Numbering of the system : Start from bridgehead position, and to the side where more Substilüenis. 8 7 6 ST 4 9 10.4 Lowest Number Rule Towest number Rule Add the no. where the substituent present (2 +4+5) = 11 Add the no. where the substituent Present (5+3+2) = 10 : Therefore the nomen clature of the compound given is 2,3,5,9 - telvamethylbicyelo [ 4.4,0] decane