My chemistry background is limited, so I'm not equipped to talk about amines Vs alcohols and such. However, the relative scaricty of Chlorine in the universe may not count for as much as you think. For example, an oxygen-rich atmosphere is not "natural" in that it wouldn't exist without all the plant life pumping 02 into the air. Otherwise all the oxygen would slowly react with other materials and end up bound into water or oxidized materials like rust or beach sand.
Thus, if some sort of clorine-based ecosystem got a foothold before the oxygen forms, then you could have a clorine environment that might not allow any oxygen forms to develop later.
Admittedly, my background is in eletrical and aero engineering, not chemistry, so there are probably holes in this.
----------
No, I don't believe the world has gone mad. In order for it to go mad it would need to have been sane at some point.
Thus, if some sort of clorine-based ecosystem got a foothold before the oxygen forms, then you could have a clorine environment that might not allow any oxygen forms to develop later.
Admittedly, my background is in eletrical and aero engineering, not chemistry, so there are probably holes in this.
----------
No, I don't believe the world has gone mad. In order for it to go mad it would need to have been sane at some point.