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Page 1
Showing results for alkene ir
Search for Allende IR instead (3 results)
Neuroimaging in headache.
Goadsby PJ. Goadsby PJ. Microsc Res Tech. 2001 May 1;53(3):179-87. doi: 10.1002/jemt.1082. Microsc Res Tech. 2001. PMID: 11301493 Review.
The shared anatomical and physiological substrate for both of these clinical problems is the neural innervation of the cranial circulation. Functional imaging with positron emission tomography (PET) has shed light on the genesis of both syndromes, documenting activation in …
The shared anatomical and physiological substrate for both of these clinical problems is the neural innervation of the cranial circul …
Ligand Controlled Ir-Catalyzed Regiodivergent Oxyamination of Unactivated Alkenes.
Lei H, Conway JH Jr, Cook CC, Rovis T. Lei H, et al. J Am Chem Soc. 2019 Jul 31;141(30):11864-11869. doi: 10.1021/jacs.9b06366. Epub 2019 Jul 16. J Am Chem Soc. 2019. PMID: 31310537 Free PMC article.
An intramolecular Ir(III)-catalyzed regiodivergent oxyamination of unactivated alkenes provides valuable gamma-lactams, gamma-lactones and delta-lactams. The regioselectivity is controlled by the electronically tunable cyclopentadienyl Ir(III)-complexes enabl …
An intramolecular Ir(III)-catalyzed regiodivergent oxyamination of unactivated alkenes provides valuable gamma-lactams, gamma- …
Catalytic Chemical Recycling of Post-Consumer Polyethylene.
Arroyave A, Cui S, Lopez JC, Kocen AL, LaPointe AM, Delferro M, Coates GW. Arroyave A, et al. J Am Chem Soc. 2022 Dec 28;144(51):23280-23285. doi: 10.1021/jacs.2c11949. Epub 2022 Dec 16. J Am Chem Soc. 2022. PMID: 36524740
Unsaturation was introduced into HDPE by catalytic dehydrogenation using an Ir-POCOP catalyst without an alkene acceptor. Cross-metathesis with 2-hydroxyethyl acrylate followed by hydrogenation transformed the partially unsaturated HDPE into telechelic macromonomers …
Unsaturation was introduced into HDPE by catalytic dehydrogenation using an Ir-POCOP catalyst without an alkene acceptor. Cros …
Ir(III)-catalyzed C7-position-selective oxidative C-H alkenylation of indolines with alkenes in air.
Pan S, Wakaki T, Ryu N, Shibata T. Pan S, et al. Chem Asian J. 2014 May;9(5):1257-60. doi: 10.1002/asia.201301733. Epub 2014 Mar 3. Chem Asian J. 2014. PMID: 24591461
An efficient method for C7-position-selective alkenylation of N-substituted indolines with alkenes is reported. Various 7-alkenylindolines were obtained in moderate to excellent yields in air in the presence of catalytic amounts of [Cp*IrCl2]2, AgOTf, and Cu(OAc)2. ...
An efficient method for C7-position-selective alkenylation of N-substituted indolines with alkenes is reported. Various 7-alkenylindo …
Rehabilitation of peripheral nerve injuries.
Robinson MD, Shannon S. Robinson MD, et al. Phys Med Rehabil Clin N Am. 2002 Feb;13(1):109-35. doi: 10.1016/s1047-9651(03)00074-3. Phys Med Rehabil Clin N Am. 2002. PMID: 11878078 Review.
A review of the synthetic strategies toward spirobarbiturate-fused 3- to 7-membered rings.
Bagherinejad A, Alizadeh A. Bagherinejad A, et al. Org Biomol Chem. 2022 Sep 21;20(36):7188-7215. doi: 10.1039/d2ob01326f. Org Biomol Chem. 2022. PMID: 36070341 Review.
Due to the importance of barbiturate-based olefins as activated alkenes, these substrates have been utilized in many reactions. In addition, the nucleophilic addition of 1,3-disubstituted barbituric acid to different electrophiles has been applied to prepare highly functio …
Due to the importance of barbiturate-based olefins as activated alkenes, these substrates have been utilized in many reactions. In ad …
Iridium-catalyzed enantioselective allylic vinylation.
Hamilton JY, Sarlah D, Carreira EM. Hamilton JY, et al. J Am Chem Soc. 2013 Jan 23;135(3):994-7. doi: 10.1021/ja311422z. Epub 2013 Jan 9. J Am Chem Soc. 2013. PMID: 23256708
The first example of Ir-catalyzed asymmetric substitution reaction with vinyl trifluoroborates is described. The direct reaction between branched, racemic allylic alcohols and potassium alkenyltrifluoroborates proceeded with high site selectivity and excellent enantioselec …
The first example of Ir-catalyzed asymmetric substitution reaction with vinyl trifluoroborates is described. The direct reaction betw …
Reactivity of Iridium Complexes of a Triphosphorus-Pincer Ligand Based on a Secondary Phosphine. Catalytic Alkane Dehydrogenation and the Origin of Extremely High Activity.
Gordon BM, Lease N, Emge TJ, Hasanayn F, Goldman AS. Gordon BM, et al. J Am Chem Soc. 2022 Mar 9;144(9):4133-4146. doi: 10.1021/jacs.1c13309. Epub 2022 Feb 27. J Am Chem Soc. 2022. PMID: 35224972
While dehydrogenation by ((R)PCP)Ir proceeds through an intermediate trans-(PCP)IrH(2)(alkene), ((tBu)PPP)Ir follows a pathway proceeding via cis-(PPP)IrH(2)(alkene), thereby circumventing unfavorable placement of the alkene at the bulky site tr …
While dehydrogenation by ((R)PCP)Ir proceeds through an intermediate trans-(PCP)IrH(2)(alkene), ((tBu)PPP)Ir follows a …
A New Paradigm in Pincer Iridium Chemistry: PCN Complexes for (De)Hydrogenation Catalysis and Beyond.
Wang Y, Huang Z, Liu G, Huang Z. Wang Y, et al. Acc Chem Res. 2022 Aug 2;55(15):2148-2161. doi: 10.1021/acs.accounts.2c00311. Epub 2022 Jul 19. Acc Chem Res. 2022. PMID: 35852837
Another feature originates from the ability of the pentacoordinate hydrido chloride complex (PCN)Ir(III)HCl to undergo reversible solvent-coordination-induced-ionization (SCII), furnishing a cationic monohydride [(PCN)Ir(III)H(Sol)](+)Cl(-) bearing an uncoordinated …
Another feature originates from the ability of the pentacoordinate hydrido chloride complex (PCN)Ir(III)HCl to undergo reversible sol …
Asymmetric hydrogenation using monodentate phosphoramidite ligands.
Minnaard AJ, Feringa BL, Lefort L, de Vries JG. Minnaard AJ, et al. Acc Chem Res. 2007 Dec;40(12):1267-77. doi: 10.1021/ar7001107. Epub 2007 Aug 18. Acc Chem Res. 2007. PMID: 17705446 Review.
Enantioselectivities between 95 and 99% were obtained in the asymmetric hydrogenation of protected alpha- and beta-dehydroamino acids and esters, itaconic acid and esters, aromatic enamides, aromatic enol esters, aromatic and aliphatic enol carbamates, and alpha-substituted cinna …
Enantioselectivities between 95 and 99% were obtained in the asymmetric hydrogenation of protected alpha- and beta-dehydroamino acids and es …
6,162 results