[C:1](=O)([O:6][C:7]1[C:15]2[O:14][C:13]([CH3:17])([CH3:16])[CH2:12][C:11]=2[CH:10]=[CH:9][CH:8]=1)[O:2]C(Cl)C.[CH3:19][N:20](C)C1C=CC=CC=1>N1C=CC=CC=1>[CH3:19][NH:20][C:1](=[O:2])[O:6][C:7]1[C:15]2[O:14][C:13]([CH3:17])([CH3:16])[CH2:12][C:11]=2[CH:10]=[CH:9][CH:8]=1The procedure is as in (a) followed by (b), but pyridine is replaced by N,N-dimethylaniline and the intermediate carbonate is not distilled. Starting with 16.4 g of 2,3-dihydro-2,2-dimethyl-7-benzofuranol, 16.8 g (76%) of CARBOFURAN are then obtained, M.p. 147° C.
불러오는 중…