130737-99-4Relevant academic research and scientific papers
Complex Polyheterocycles and the Stereochemical Reassignment of Pileamartine A via Aza-Heck Triggered Aryl C-H Functionalization Cascades
Bower, John F.,Caiger, Lewis,García-Cárceles, Javier,Hazelden, Ian R.,Jones, Benjamin T.,Langer, Thomas,Lewis, Richard J.
supporting information, p. 15593 - 15598 (2021/10/12)
Structurally complex benzo- and spiro-fused N-polyheterocycles can be accessed via intramolecular Pd(0)-catalyzed alkene 1,2-aminoarylation reactions. The method uses N-(pentafluorobenzoyloxy)carbamates as the initiating motif, and this allows aza-Heck-type alkene amino-palladation in advance of C-H palladation of the aromatic component. The chemistry is showcased in the first total synthesis of the complex alkaloid (+)-pileamartine A, which has resulted in the reassignment of its absolute stereochemistry.
Pyrrolidines and Piperidines by Ligand-Enabled Aza-Heck Cyclizations and Cascades of N-(Pentafluorobenzoyloxy)carbamates
Hazelden, Ian R.,Carmona, Rafaela C.,Langer, Thomas,Pringle, Paul G.,Bower, John F.
supporting information, p. 5124 - 5128 (2018/03/26)
Ligand-enabled aza-Heck cyclizations and cascades of N-(pentafluorobenzoyloxy)carbamates are described. These studies encompass the first examples of efficient non-biased 6-exo aza-Heck cyclizations. The methodology provides direct and flexible access to carbamate protected pyrrolidines and piperidines.
Combined oxypalladation/C-H functionalization: Palladium(II)-catalyzed intramolecular oxidative oxyarylation of hydroxyalkenes
Zhu, Rong,Buchwald, Stephen L.
supporting information; experimental part, p. 1926 - 1929 (2012/03/22)
An efficient protocol has been developed for the intramolecular oxidative oxyarylation using a PdII-catalyzed tandem oxypalladation/C-H functionalization strategy. This methodology allows rapid access to tetrahydro-2H-indeno-[2,1-b]furan framew
PERFUMING INGREDIENTS OF THE FLORAL AND/OR ANIS TYPE
-
, (2011/10/10)
The present invention concerns the use as perfuming ingredient, for instance to impart odor notes of the floral and/or green type, of a compound of formula 5 wherein R is an ortho, meta or para substituent of the phenyl, and represents a hydrogen atom or a C 1-2 alkyl or alkoxyl group; R 1 represents a hydrogen atom or a methyl or ethyl group; 10 R 2 represents a hydrogen atom or a C 1-3 alkyl group; and X represents a CHO, COOR 3, CH(OR 4) 2 or CN group, R 3 being a methyl or ethyl group, and R 4, taken seperately, being a methyl or ethyl group, or said R 4, taken together, a C 2-5 alkanediyl group; and at least one of said R, R 1 or R 2 represents a group containing at least one carbon atom.
