公开(公告)号：US20240018071A1

公开(公告)日：2024-01-18

申请号：US18220704

申请日：2023-07-11

申请人： ENTEGRIS, INC.

发明人： Scott A. Laneman ,  Vagulejan Balasanthiran ,  Smita Patnaik ,  Victoria Weidner

IPC分类号： C07C4/08

CPC分类号： C07C4/08

摘要： The disclosure provides an improved method for preparing monoalkylated cyclopentadiene species in high yield and selectivity. In the process, either a solution of dicyclopentadiene magnesium or a cyclopentadiene magnesium halide is reacted with an alkylating agent in the presence of a modifying agent to provide the monoalkylated product. In the process of the disclosure, only a mono-alkylated species is produced with no detectible amount of dialkylated product observed.