Functionalization of Quinazolin-4-Ones Part 2<sup>#</sup>: Reactivity of 2-Amino-3, 4, 5, or 6-Nitrobenzoic Acids with Triphenylphosphine Thiocyanate, Alkyl Isothiocyanates, and Further Derivatization Reactions
作者:Jacob T. Heppell、Jasim M. A. Al-Rawi
DOI:10.1002/jhet.2235
日期:2015.9
2‐amino‐3, 4, 5, or 6‐nitrobenzoic acids were reacted with PPh3(SCN)2 and alkyl isothiocyanates to give 5, 6, 7, or 8‐nitro‐2‐thioxo‐3‐substituted quinazolin‐4‐ones, respectively. The position of the nitro group was found to have significant influence on the outcome of the reactions. Similarly, the nature of the substituent at position 8 (NO2, NH2, NH(C═O)CH3) in 8‐substituted‐2‐methylthio quinazolin‐4‐ones