In a modified procedure, the reactions of benzofurazan oxide (8 ) with specific ketones, in the presence of pyrrolydine, were found to be faster and to afford higher yields of the corresponding alkyl substituted quinoxaline ...
2,3-Naphthalene dialdehyde (see text for structure 115), 2,3-dibensoylanthracene (36) were prepared and used as starting materials in the preparation of some isoindoles. It was found that the literature method for the ...
The poultry industry in Lebanon has witnessed a great expansion during the last few decades. One of the problems facing the poultry industry today is the disposal of non productive layer chicken in the most economical way. ...