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Reaction of Diethyl Pyrocarbonate With Nucleic Acid Components. I. Adenine

Reaction of Diethyl Pyrocarbonate With Nucleic Acid Components. I. Adenine

N J Leonard, J J McDonald, M E Reichmann

Proc Natl Acad Sci U S A. 1970 Sep;67(1):93-8.

PMID: 5272333

Abstract:

The use of diethyl pyrocarbonate as a nuclease inhibitor in the preparation of RNA of high molecular weight has prompted a study of the possible reactions of this compound with nucleic acid components under the conditions generally employed for providing inhibition. The first substrate investigated was adenine, which has been found to undergo ring opening with the formation of 5(4)-N-carbethoxyaminoimidazole-4(5)-N'- carbethoxycarboxamidine (II). This product was converted efficiently to isoguanine by treatment with ammonia. The structure of II was established by spectroscopy. For comparisons of reactivity and of spectroscopic and chromatographic properties with the adenine-diethyl pyrocarbonate product, the compounds 9-carbethoxyadenine, 6-N-carbethoxyaminopurine (V), and 6-ethylaminopurine were made; compound V was made by employing the 1-ethoxyethyl protecting group in the synthetic sequence. Purine compounds can be converted to 9-(1-ethoxyethyl) derivatives simply by refluxing in acetal. The facile reaction of adenine with diethyl pyrocarbonate illustrates the importance of gaining information as to the fate of various nucleic acid components in the presence of diethyl pyrocarbonate.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1609478	Diethyl pyrocarbonate		1609-47-8	Price

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