Fused Tetrazolo[1,5-<i>a</i>]pyrimidines and 2-Azidopyrimidines from 2-Acyl-1,3-indandiones and 5-Aminotetrazole
作者:Thomas Russ、Jan W Bats、Walter Ried
DOI:10.1055/s-1990-26994
日期:——
Cyclocondensations of 2-acyl-1,3-indandiones 1a-e and 5-amino-tetrazole monohydrate (2) in ethanol in the presence of catalytic amounts of acetic acid afford indeno[1,2-d]tetrazolo[1,5-a]pyrimidin-6-ones 3a-c or 2-azidoindeno[1,2-d]pyrimidin-5-ones 4a,b in a single step depending on the nature of the acyl substituent R. The structure of 3c was confirmed by X-ray analysis.
2-酰基-1,3-茚满二酮 1a-e 和 5-氨基-四唑一水合物 (2) 在乙醇中在催化量的乙酸存在下环缩合得到茚并[1,2-d]四唑[1,5- a]嘧啶-6-酮 3a-c 或 2-叠氮茚并[1,2-d]嘧啶-5-酮 4a,b 根据酰基取代基 R 的性质,一步完成。 3c 的结构通过以下方式确认X 射线分析。