ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

076ChemInform Abstract The reaction of 1-methylpyrrole (I) with diethyl azodicarboxylate (II) in a dried ether yields the two Michael type adducts (III) and (IV), together with a small amount of the dihydrodipyrrolopyridazine derivative (V).

1999 esterification, ester hydrolysis esterification, ester hydrolysis O 0310 -053Synthesis of Five-Membered 2-Heteroaryl 2-Heteroaromatic Carboxylates and Attempted Cyclization to Bisheteroaryl[2,3-b:3',2'd]pyran-2-one.-A method for the preparation of the title carboxylates such as (III) and (V) is described and their spectroscopic data are discussed in detail. All attempts to cyclize the obtained compounds fail. It is noteworthy that the reaction in pyridine only yields anhydrides. -(LEE, C. K.; YU, J. S.; KIM, S. H.; J.