Aggregative activation in heterocyclic chemistry. Part 4. Metallation of 2-methoxypyridine: unusual behaviour of the new unimetal superbase BuLi–Me2N(CH2)2OLi (BuLi–LiDMAE)
Substituted 2-(het)arylimidazolylcarboxyamides as pesticides
申请人:Bayer CropScience Aktiengesellschaft
公开号:US10807968B2
公开(公告)日:2020-10-20
The present invention relates to compounds of the general formula (I)
in which Q, V, T, W, X, Y and A have the meanings given in the description—and to their use for controlling animal pests.
本发明涉及通式 (I) 的化合物
中 Q、V、T、W、X、Y 和 A 的含义,以及它们在控制动物害虫方面的用途。
Gros, Philippe; Fort, Yves; Caubere, Paul, Journal of the Chemical Society. Perkin transactions I, 1998, # 10, p. 1685 - 1689
作者:Gros, Philippe、Fort, Yves、Caubere, Paul
DOI:——
日期:——
SUBSTITUTED 2-(HET)ARYLIMIDAZOLYLCARBOXYAMIDES AS PESTICIDES
申请人:Bayer CropScience Aktiengesellschaft
公开号:US20200048221A1
公开(公告)日:2020-02-13
The present invention relates to compounds of the general formula (I)
in which Q, V, T, W, X, Y and A have the meanings given in the description—and to their use for controlling animal pests.
Aggregative activation in heterocyclic chemistry. Part 4. Metallation of 2-methoxypyridine: unusual behaviour of the new unimetal superbase BuLi–Me2N(CH2)2OLi (BuLi–LiDMAE)
作者:Philippe Gros、Yves Fort、Paul Caubère
DOI:10.1039/a701914i
日期:——
A series of potential unimetal superbases BuLiâROLi has been studied in order to increase the basicity/nucleophilicity ratio ([B/N]R) of BuLi. The best [B/N]R ratio is found with BuLiâLiDMAE. This complex base apparently metallates 2-methoxypyridine at the unexpected C-6 position. It is shown that no actual metallated species are formed in the reaction medium, the reaction occurring as the result of a common radical precursor stabilized by an aggregate cluster. Finally, as an application, C-6 substituted 2-methoxypyridines have been obtained in good to excellent yields.