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Sir, i m having a difficulty in making fisher projection formla for a compound so will u pls help me and tell me a trick or a soln to avoid such problems in nera future. thank u.

gyan prakash , 11 Years ago
Grade 12
anser 1 Answers
Vikash Kumar

Last Activity: 11 Years ago

if it is wedge dash projection then see the example below, look from the figure''s left such that the two bonds Et points towards your left and H points towards your right. write them as it is and similarly for OH(will be at the top ) and CH3 (will be at thw bottom).

if it is sawhorse projection, rotate the groups on both carbons of the eclipsed Sawhorse Projection such that the groups that make up the longest carbon chain in the molecule are oriented downward. The central bond should remain unchanged as shown in the figure and then try to flatten it from top. see the second figure given below
                  

Thanks & Regards
Vikash Kumar, 
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B.Tech, IIT Delhi

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