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/sci/ - Science & Math

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7364417 No.7364417 [Reply] [Original]

Hey, I'm just wondering:
http://chemwiki.ucdavis.edu/@api/deki/files/18527/Screen_Shot_2014-04-22_at_9.31.17_PM.png?revision=1

Why would h. example be R configuration? Isn't it S? That makes no sense, did they fail? Thanks for answers..

>> No.7364430

Anyone knows the answer ?

>> No.7364493

please its just one example and Im in a hurry, I thik the example is wrong (result) or Im doing something wrong

>> No.7364499
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7364499

>>7364417
> Why would h. example be R configuration?
Because they say it's so.

If they can legalize two gays marrying, don't you think they can dictate organic nomenclature?

>> No.7364503

>>7364417
It's R. Visualize the molecule being moved so that the methyl group (least priority) protrudes out of the plane of view away from you. Then you should be able to see that it is R, you noob.

>> No.7364634

>>7364503
>http://chemwiki.ucdavis.edu/@api/deki/files/18527/Screen_Shot_2014-04-22_at_9.31.17_PM.png?revision=1

I see.. I thought you could just use the trick where you ignore the group that's in the back and set it normally and if the lowest priority group isn't at the back then you just change the configuration from R to S.. (F > CH2CH3 > CH3)

>> No.7364767

>>7364634
why is O lowest priority

>> No.7366733

>>7364767
Because the OH group is behind the plane.