[EN] CARBAMATE QUINABACTIN<br/>[FR] QUINABACTINE DE CARBAMATE
申请人:UNIV CALIFORNIA
公开号:WO2018017490A1
公开(公告)日:2018-01-25
The present invention relates to novel sulfonamide derivatives, to processes and intermediates for preparing them, to plant growth regulator compositions comprising them and to methods of using them for controlling the growth of plants, improving plant tolerance to abiotic stress (including environmental and chemical stresses), inhibiting seed germination and/or safening a plant against phytotoxic effects of chemicals.
Basic media behavior of N-[2-(1-hydroxy-2-Y-ethyl)phenyl] ethyl carbamates (Y = SMe, SOMe, SO2Me, H, Br, CN)
作者:Jose Luis Garcia Ruano、Concepción Pedregal、Jesús H. Rodriguez
DOI:10.1016/0040-4020(89)80047-x
日期:1989.1
From the results obtained in the hydrolysis reaction of the carbamate group of some thioderivatives compounds whose common structure is (2 → tOOCNH-C6H4)-CHOH-CH2Y a mechanism is suggested to explain the products, as well as the relationship between the relative configuration of diastereoisomeric sulfoxides (Y = SOMe) with the reaction rate and with the stereochemical outcome. Other interesting and
Process and intermediates for beta-lactam antibiotics
申请人:THE PRESIDENT AND FELLOWS OF HARVARD COLLEGE
公开号:EP0209352A2
公开(公告)日:1987-01-21
ABSTRACT OF THE INVENTION
1-Benzyl(or substituted benzyl)-3β-[4(S)-aryloxazolidin-2-one-3-yl]-4β-(2-arylvinyl)azetidin-2- ones are provided via cycloaddition of a 4(S)-aryloxazol- idin-2-one-3-ylacetyl halide and an imine formed with a benzylamine and a 3-arylacrolein, e.g. cinnamaldehyde. The azetidinones are useful chiral intermediates in an asymmetric synthesis of 1-carba(1-dethia)-3-cephem-4-carboxylic acids and esters and to monocyclic β-lactam antibiotics.