2,3-Dichloro-propionic acid (3aR,3bS,7aR,8aR)-2,2,5,5-tetramethyl-tetrahydro-[1,3]dioxolo[4,5]furo[3,2-d][1,3]dioxin-7-ylmethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
2,3-二甲基苯胺                                                                                                                                  作用下,
                                                                                                                                                                                                                            以67%的产率得到2-Chloro-acrylic acid (3aR,3bS,7aR,8aR)-2,2,5,5-tetramethyl-tetrahydro-[1,3]dioxolo[4,5]furo[3,2-d][1,3]dioxin-7-ylmethyl ester