In 135Q if you search for alpha hydrogen you will be left with one that is towards the cyclic carbon. Now due to bayers strain (carbon is already having angular strain as this is so hybridise so it's angle should be 109.5° and further after tautomerization it's bond angle gets increased. So more angle strain.)
Quinone doesn't show tautomerism : if you draw the keto enol structure of it u can see firstly conjugate double bond not possible n secondly 2 pie electron present that is so hybridised carbon. Same goes for 3 But in case 2 same isn't repeating
In question 135 why the answer is b
ReplyDeletePlease explain
In 135Q if you search for alpha hydrogen you will be left with one that is towards the cyclic carbon.
DeleteNow due to bayers strain (carbon is already having angular strain as this is so hybridise so it's angle should be 109.5° and further after tautomerization it's bond angle gets increased. So more angle strain.)
Because bridge carbon can never participate in tautomerism according to braits rule.and another side their is no any alpha hydrogen.
DeleteQ 128 answer should be "d"
ReplyDeleteQuinone doesn't show tautomerism : if you draw the keto enol structure of it u can see firstly conjugate double bond not possible n secondly 2 pie electron present that is so hybridised carbon. Same goes for 3
DeleteBut in case 2 same isn't repeating
How to know the order of enol content?
ReplyDeleteHow to know the order of enol content?
ReplyDeleteHere we are to look for information that can make us gain insight. thank you for this good article. https://www.sputtertargets.net/
ReplyDeleteexplain 134
ReplyDelete