Abstract
It has been shown through observations in the infrared from ISO (Infrared Space Observatory) and SST (Spitzer Space Telescope), the existence of astrophysical ices toward protostars. Among them, there are H2O, CO, CO2, NH3, CH3OH, CH4, HCOOH, H2CO, CH3CHO. In the same time of observations, several papers were published, showing the formation of complex molecules from simple one, through e…