Biocidal Compounds from<i>Mentha</i>sp. Essential Oils and Their Structure-Activity Relationships
作者:Athanasios C. Kimbaris、Azucena González-Coloma、Maria Fe Andrés、Veroniki P. Vidali、Moschos G. Polissiou、Omar Santana-Méridas
DOI:10.1002/cbdv.201600270
日期:2017.3
semi‐synthetic endocyclic trans‐carvone epoxide, exocyclic carvone epoxide, a new exocyclic piperitenone epoxide and trans‐pulegone epoxide. Leptinotarsa decemlineata feeding was affected by piperitenone and piperitoneepoxide. Spodoptera littoralis was affected by piperitoneepoxide and pulegone. The strongest nematicidal agent was piperitenone epoxide, followed by piperitoneepoxide, piperitenone and carvone.
ants. The mosquito bite-deterring activity level of callicarpenal was reported to be similar to that of N,N-diethyl-m-toluamide. The novelsynthesis of (−)-callicarpenal reported herein was accomplished by starting from (+)-pulegone. In our original approach, a novel Prins-type cyclization based on Meyer–Schuster rearrangement was featured as a key step.
α-Corocalene, a constituent of hop oil, has been synthesized in four steps from the monoterpene (+)-pulegone.
从单萜烯 (+)-pulegone 经过四个步骤合成了酒花油的一种成分 δ-可可碱。
Probing for Steric and Electronic Effects in Diastereoselective Dioxirane Epoxidations Compared to The Oxygen Transfer by Peroxy Acids
作者:Waldemar Adam、Rodrigo Paredes、Alexander K. Smerz、L. Angela Veloza
DOI:10.1002/jlac.199719970316
日期:1997.3
derivatives of 2-cyclohexenol derives fromsteric interactions, whereas a pronounced electronic effect (electrostatic repulsion) is held responsible for the high anti selectivity of peroxides such as ascaridol and 3-hydroperoxycyclohexene. Quite generally, dioxiranes display only slightly higher diastereoselectivities than mCPBA in sterically controlled epoxidations of cycloalkenes.
On the geometric requirements for concerted 1,2-carbonyl migration in α,β-epoxy ketones
作者:Robert D. Bach、Russell C. Klix
DOI:10.1016/s0040-4039(00)98492-2
日期:1985.1
The stabilizing influence of neighboring group participation by the carbonyl group in concerted 1,2-acyl migration is related to the ability of the molecule to assume a transition stage geometry resembling a cyclopropyloxenium ion.