Zobrazeno 1 - 10
of 88
pro vyhledávání: '"J. Folmer"'
Publikováno v:
South African Family Practice, Vol 25, Iss 5 (2002)
Background: Epidemiologic surveys of poisonings as well as inquiries regarding poisonings are necessary to obtain information for the combating as well successful medical management of poisonings. Methods: All telephonic consultations regarding pois
Externí odkaz:
https://doaj.org/article/3f626f5308554b49b8d68c73660935d6
Publikováno v:
Catalysts, Vol 12, Iss 3, p 327 (2022)
The epoxidation of propene without forming a substantial amount of byproducts is one of the holy grails of catalysis. Supported Cu, Ag and Au catalysts are studied for this reaction and the activity of the supported metals is generally well understoo
Externí odkaz:
https://doaj.org/article/9f5e90533a704bbd9e64c0e7d16aa20d
Publikováno v:
Drug Metabolism and Disposition. 39:302-311
Studies on the biotransformation of isoxazole rings have shown that molecules containing a C3-substituted isoxazole or a 1,2-benzisoxazole can undergo a two-electron reductive ring cleavage to form an imine. In the absence of a C3 substituent, the is
Publikováno v:
The Journal of Organic Chemistry. 65:6293-6306
A new strategy for enantiospecific construction of the Securinega alkaloids has been developed and applied in total syntheses of (+)-14,15-dihydronorsecurinine (8), (-)-norsecurinine (6), and phyllanthine (2). The B-ring and C7 absolute stereochemist
Publikováno v:
Angewandte Chemie International Edition. 39:237-240
An inexpensive proline derivative and chiral control feature in the total synthesis of securinega alkaloids (-)-norsecurinine (1) and phyllanthine (2). Key steps in the synthesis of 1 include an intramolecular ketonitrile coupling and application of
Publikováno v:
The Journal of Organic Chemistry. 63:8170-8182
Carbacephems have been synthesized from d-serine by two routes involving construction first of the six-membered ring followed by cyclization to give the bicyclic β-lactam. In one route, alkylation of a lactim ether was accomplished with Ni(Acac)2 as
Autor:
Steven M. Weinreb, James J. Folmer
Publikováno v:
Tetrahedron Letters. 34:2737-2740
Esters can be generated directly in good yields under mild conditions from the corresponding carboxylic acid and alcohol using Appel's salt (4,5-dichloro-1,2,3-dithiazolium chloride) and 2,6-lutidine.
Autor:
James J. Folmer, Steven M. Weinreb
Publikováno v:
ChemInform. 24
Esters can be generated directly in good yields under mild conditions from the corresponding carboxylic acid and alcohol using Appel's salt (4,5-dichloro-1,2,3-dithiazolium chloride) and 2,6-lutidine.