This disclosure relates to macrocyclic picolinamides of Formula I and their use as fungicides.
本公开涉及式I的宏环烟酰胺及其作为杀菌剂的使用。
REACTION OF OXIRANES WITH DIANION OF METHYL ACETOACETATE IN THE PRESENCE OF BORON TRIFLUORIDE ETHERATE
作者:Masahiko Yamaguchi、Ichiro Hirao
DOI:10.1246/cl.1985.337
日期:1985.3.5
Oxiranes were reacted with dianion of methyl acetoacetate in the presence of borontrifluoride etherate to give the substituted tetrahydro-2-furylideneacetates, which were further converted to γ-lactones.
Diastereoselectivity of conjugate addition to γ-alkoxy-α,β-unsaturated esters via organocopper–Lewis acids and related reagents. Importance of the double bond geometry in controlling the selectivity
作者:Yoshinori Yamamoto、Shinji Nishii、Toshiro Ibuka
DOI:10.1039/c39870000464
日期:——
The Lewis acid mediated addition of organocopperreagents to the trans-ester (7a) produced the anti-isomer (8a) predominantly, while addition to the cis-derivative (7b) gave the syn-isomer (9a) preferentially, and addition of organometallic compounds to the diester (7c) also afforded the syn-isomer (9b) predominantly; this change in diastereoselectivity indicates the importance of the double bond geometry