In this step, the adduct from step 1 is fluorinated . 在这一步,将步骤1的加合产物进行氟化。
The expected adduct 100 was not stable and appeared to undergo further reaction to the spiro intermediate 101 . 由于所期待的加成物(100)不稳定,它经过进一步的反应,就产生螺环中间体。
Modification for synthetic purposes on the diels-alder adducts 56 and 62 has only rarely been considered . 为了达到合成的目的,对Diels-Alder加成物(56)和(62)加以改造的问题很少有人考虑。
the adduct is isolated by evaporating the solvent and any low-boiling concomitants at low temperatures of the order of about-100 to -20℃. 在-100-20的低温下,将溶剂和低沸点成分蒸发掉而分离出加合物。
It ' s a two - component amine adduct cured epoxy paint 一种双组份胺加成固化的环氧涂料。