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how to make closed chanes of alkanes ,alkynes and alkenes?

Submitted by zafar iqbal on Sun, 09/07/2014 - 22:57

how can i made cyclic or heterocylclic chain it is very difficult for me i don;t know about it


Are you just trying the draw the structures or chemically make them? If you had straight chain propane, C3H8 and were making cyclopropane, take 1 hydrogen atom of each end to leave C3H6 and then join the end 2 carbon atoms together. If you had butene C4H8 (either but-1-ene or but-2-ene), again take 1 hydrogen atom of each end to leave C4H6 and then join the end 2 carbon atoms together to give a 4 carbon ring with 1 double bond between 2 of the C atoms.

http://www.mheducation.ca/school/files/2011/08/Chapter-1-Section-1.2.pdf

is a good reference