Synthetic Approaches to Naturally Occurring Cyclopentanes [PDF]
, 1966 PART I. Five synthetic routes to the prostaglandins, a group of highly substituted cyclopentanes, have been explored. The first four routes were unsuccessful but have provided interesting and useful information on a variety of substituted cyclopentanes ...
Clayton, John Peter
core +6 more sources
Access to Spirooxindole-fused Cyclopentanes via Stereoselective Organocascade Reaction using Bifunctional Catalysis [PDF]
, 2022 The present study reports an asymmetric organocascade reaction of oxindole-derived alkenes with 3-bromo-1-nitropropane efficiently catalyzed by the bifunctional catalyst. Spirooxindole-fused cyclopentanes were produced in moderate-to-good isolated yields
Simona, Petrželová +4 more
core +2 more sources
Borylated Cyclopentanes via Atom Transfer Radical [3+2] Annulation [PDF]
, 2023 . An atom transfer radical [3+2] annulation (ATRAn) reaction involving alkenyl boronic esters and homoallylic iodides provides a rapid access to polysubstituted borylated cyclopentanes.
Manuel, Gnägi-Lux +4 more
core +2 more sources
Establishment of a CRISPR-Cas9 Library for Indica Rice and Identification of OsOPR5 (LOC_Os06g11210) as a Regulator of Root Architecture. [PDF]
Physiol PlantABSTRACT Functional characterization of a large number of rice genes remains a major challenge despite the availability of genome sequences and large‐scale transcriptomic datasets. CRISPR‐Cas9 library is a powerful approach for high‐throughput targeted mutagenesis; however, its application in indica rice cultivars remains limited due to low ...
Chowdhury S +12 more
europepmc +2 more sources
Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism
Geophysical Monograph Series, Page 83-102., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
David P. G. Bond, Yadong Sun
wiley +1 more source
, 2016 A Facile Access to Densely Functionalized Substituted Cyclopentanes and Spiro Cyclopentanes.
Azizul Haque (3040599) +3 more
core +2 more sources
, 2023 Despite the widespread presence of the chiral cyclopentane motif, the asymmetric synthesis of cyclopentanes containing five stereocenters remains a formidable challenge.
Wei Huang (36889) +8 more
core +2 more sources
, 2021 International audienceThe access to 1,2- and 1,1,2-substituted trans cyclopentanes via a sequential hydrozirconation/TMSOTf-mediated cyclization applied to 5-methoxypent-1-enes is presented. Involving a transient carbocation, the reaction was shown to be
Coelho, Aurélien +3 more
core +1 more source
Angewandte Chemie, EarlyView.A highly versatile and general strategy is presented for the scalable production of practical quantities of ω‐substituted α‐olefins using tris(ω‐substituted alkyl)aluminum telogens that are readily available through a “green” synthesis from commodity triisobutylaluminum and ethene as the taxogen. These new α‐olefins can be designed and used as monomers
Lauren G. Logue +4 more
wiley +2 more sources
Angewandte Chemie, EarlyView.1,2‐Aryl migration involving in situ‐generated alkyl iodine(III) species proceeds through a previously unrecognized 1,2‐C/I(III) dyotropic rearrangement. Migratory aryl fluorination, acetoxylation, and alkoxylation of 2‐alkyl‐2‐aryl‐3‐iodopropanoates provide α‐heterofunctionalized products, accompanied by aryl migration from the α‐ to the β‐position ...
Chen‐Xu Liu +3 more
wiley +2 more sources