N NA19 Full Member 10+ Year Member Jul 18, 2013 #1 Advertisement - Members don't see this ad Why isn't this an S stereocenter? Attachments mcat question 2.png 15.3 KB · Views: 124
F FeinMS Full Member 10+ Year Member Jul 18, 2013 #2 OH gets 1 CHO which is carbon connected to O,O,H (two O because of double bond) gets 2 CH2OH which is carbon connected to O,H,H gets 3 H gets 4 and it's properly in the back. Get the arc connecting 1,2,3. It will turn clockwise so R. Upvote 0 Downvote
OH gets 1 CHO which is carbon connected to O,O,H (two O because of double bond) gets 2 CH2OH which is carbon connected to O,H,H gets 3 H gets 4 and it's properly in the back. Get the arc connecting 1,2,3. It will turn clockwise so R.
sazerac rye sense of humor 10+ Year Member Jul 18, 2013 #3 The carbon on top has two bonds to (the same) oxygen. That beats the carbon on the right, which has only one bond to an oxygen. They both lose to an actual oxygen of course. Upvote 0 Downvote
The carbon on top has two bonds to (the same) oxygen. That beats the carbon on the right, which has only one bond to an oxygen. They both lose to an actual oxygen of course.
N NA19 Full Member 10+ Year Member Jul 21, 2013 #4 Oh, forgot the double bond counts as two! Thanks! Upvote 0 Downvote
