An oxonol compound is represented by the following formula (I):
 in which each of Z, W1 and W2 independently is an atomic group that forms a heterocyclic ring; and M is a cation. Other oxonol compounds, a silver halide photographic material containing an oxonol compound and a process for the synthesis of an oxonol compound are also disclosed.
                            羰基
酚化合物由下式(I)表示:
 其中,Z、W1 和 W2 各自独立地为形成杂环的原子团;M 为阳离子。此外,还公开了其他羰基
酚化合物、含有羰基
酚化合物的卤化
银感光材料以及合成羰基
酚化合物的工艺。