[EN] CONDENSED ISOXAZOLINE DERIVATIVES AND THEIR USE AS HERBICIDES<br/>[FR] DÉRIVÉS D'ISOXAZOLINE CONDENSÉS ET LEUR UTILISATION COMME HERBICIDES
申请人:BASF SE
公开号:WO2021224040A1
公开(公告)日:2021-11-11
The invention relates to compounds of formula (I), and their use as herbicides. In said formula, R1 to R6 represent groups such as hydrogen, halo-gen or organic groups such as alkyl, alkenyl, alkynyl, or alkoxy; W is a bicyclic heterocycle; X is a bond or a divalent unit; Y is hydrogen, cyano, hydroxyl or a linear or cyclic organic group. The invention further refers to a composition comprising such compound and to the use thereof for controlling unwanted vegetation.
Indirekter Konstitutionsbeweis für Muscarin durch synthetische Versuche. 5. Mitteilung über Muscarin
作者:C. H. Eugster、P. G. Waser
DOI:10.1002/hlca.19570400404
日期:——
sich als verschieden von Muscarin erwiesen. Katalytische Oxydation rnit Platin-Sauerstoff ergab beim Muscarin ein Keton (Ketomuscarin), dessen IR.-Spektrum auf ein Fünfring-Keton schliessen lässt. Aus dem Verhalten des Ketomuscarins gegenüber Alkali ist zu schliessen, dass die Trimethylammoniumgruppe nicht in α- oder β-Stellung zur Carbonylgruppe stehen kann, und dass dem Muscarin folglich Formel III zuzuweisen
New strategy for the diastereoselective synthesis of bicyclic “pre-activated” analogues of cyclophosphamide
作者:P. Maynard-Faure、C. Gonser、V. Vaime、D. Bouchu
DOI:10.1016/s0040-4039(98)00075-6
日期:1998.4
The diastereoselective synthesis of “pre-activated” analogues of cyclophosphamide in the 3-[bis(2-chloroethyl)amino]-2-aza-4,9-dioxa-3-phosphabicyclo(4.3.0)nonane 3-oxide series in described, using either the phosphorylation of an azidoalcohol followed by a reductive cyclisation or the phosphorylation of an acetal alcohol followed by an unprecedent direct Lewis acid catalyzed intramolecular substitution
Efficient Rhodium-Catalyzed Conjugate Addition of Arylboronic Acids to Unsaturated Furano Esters for the Highly Stereoselective Synthesis of Four Natural Trisubstituted Furanolignans
(±)-sanshodiol methyl ether (1c) and (±)-acuminatin methyl ether (1d), were prepared stereoselectively in five steps from a 4-(arylmethylene)-2-methoxytetrahydrofuran derivative obtained by a MCR reaction. The key step of this synthesis is the microwave-assisted stereoselective addition of a boronic acid (Hayashi–Miyaura reaction) to a 4-ethoxycarbonyldihydrofuran, generating three contiguous stereogenic centers