[phoenixdustlandfall]

Sorry but I cannot post a pic but the following molecule:

(1R,3R) - 1 - secbutyl-3-methylcyclopentane

Why is there not a 3rd stereocenter in the secbutyl (looking at it as a carbon with ethyl/methyl/hydrogen)

Thank you

[MissPhosgene]

It may be racemic at that center, but that should be indicated in the name.

[phoenixdustlandfall]

Thank you. This was taken from a practice exam (the answer given by the instructor) I just couldn't figure out why it wouldn't be counted! I will ask him?

[discodermolide]

Sorry but I cannot post a pic but the following molecule:

(1R,3R) - 1 - secbutyl-3-methylcyclopentane

Why is there not a 3rd stereocenter in the secbutyl (looking at it as a carbon with ethyl/methyl/hydrogen)

Thank you

The sec butyl group is not chiral

[sjb]

Sorry but I cannot post a pic but the following molecule:

(1R,3R) - 1 - secbutyl-3-methylcyclopentane

Why is there not a 3rd stereocenter in the secbutyl (looking at it as a carbon with ethyl/methyl/hydrogen)

Thank you

The sec butyl group is not chiral

Are you sure? Or do you mean it's just not specified (a la MissPhosghene). How many chiral centres do you see in this molecule?

[discodermolide]

just testing

[phoenixdustlandfall]

Thank you everyone=) The instructor has replied and said it was just a typo. *whew!!