Abstract: A process for the synthesis of a compound of formula (I): wherein w, x, y and z are as defined in the description. The process includes reacting a compound of formula (II): with carbonyldiimidazole, and reacting the resulting compound with propargylamine.

Abstract: A method for preparing 3,5-dinitropyrazole, includes obtaining N-acetyl-3-nitropyrazole from pyrazole, and a sigmatropic rearrangement of the compound obtained.

Abstract: What is provided is a protective environment for paint paraphernalia and wet paint being used in a painting process. Examples of paint paraphernalia includes paint brushes, paint rollers, paint trays, and paint cans. The protective environment in one form is a flexible polyvinyl chloride of at least ½ mil in thickness. The flexible polyvinyl chloride is arranged two provided a three sided connecting edge with the fourth side left unconnected for an opening into the interior portion of the protective environment. The protective environment is placed over the paint paraphernalia and marked with various paint paraphernalia characteristics to aide in the temporary storage and reuse of the paint paraphernalia during a painting job.