Posted: Apr 15, 2010 10:32 am
Newmark wrote:rainbow wrote:Preparative synthesis of 2-aminooxazole 11 using phosphate catalysis
To a solution of glycolaldehyde 10 (1.2 g, 20 mmol) in sodium hydrogen phosphate
buffer (1.0M, 10 mL, pH = 7.0) was added cyanamide 8 (840 mg, 20 mmol). The
solution was stirred at 60°C for 3 h, cooled to r.t., and extracted with EtOAc (5 × 20
mL). The combined EtOAc extracts were concentrated in vacuo to give 2-
aminooxazole 11 (1.2 g, 75%) as a white powder.
Now besides the problematic concentrations, pH and temperatures, has anybody got an idea how a vacuum pump got to be there in the PreBiotic Earth?
Now, rainbow, this is becoming a far too common error on your part. Do you really think that a real scientist like Sutherland would postulate an environment required for his hypothesis that includes a vacuum pump, and then be stupid enough to claim that the environment containing a vacuum pump represents "prebiotically plausible conditions"? If you've heard the term "straw man", that is exactly what you set up here. I can only think of two explanations for this inane comment:
How silly of me. Of course you are correct, there couldn't have been a vacuum pump.
How do you suggest that the vacuum was obtained under prebiotically plausible conditions?