甲叉基 meaning in English

methylene

A facile method for the preparation of 10 - arylmethylene anthrone is reported . when anthrone react with aryl aldehyde in the presence of pyridine by using xylene as the solvent , besides 10 - arylmethylene anthrone derivatives we found other oxygenated anthrone which have not been reported . physical methods shows that the oxygenated anthrone is anthraquinone , and the anthraquinone cannot be removed from the condensed products by recrystallization with solvents . an effective method of getting ride of anthraquinone is sublimation by heating
以蒽酮和芳香醛为原料，二甲苯为溶剂，吡啶催化法制取10 -芳香基甲叉基蒽酮.发现其生成物中除含有目标化合物10 -芳香基甲叉基蒽酮外，还含有部分文献中没有报道的蒽酮氧化物，经物理方法确定其为蒽醌.该化合物不能用溶剂重结晶的方法将其从缩合产物中除去，有效的分离方法是升华