Results 121 to 130 of about 21,746 (290)

Chemo-, regio- and enantioselective hydroformylation of trisubstituted cyclopropenes: access to chiral quaternary cyclopropanes

Nature Communications
Catalytic asymmetric synthesis of polysubstituted chiral cyclopropane presents a significant challenge in organic synthesis due to the difficulty in enantioselective control.
Shuailong Li, Dequan Zhang, Aiswarya Purushothaman, Hui Lv, Shilpa Shilpa, Raghavan B. Sunoj, Xiuxiu Li, Xumu Zhang   +7 more
doaj   +1 more source

OPTICALLY ACTIVE CHRYSANTHEMIC ACID AND ITS ANALOGUES [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2010
Optically active chrysanthemic acid and its analogues have received considerable attention in recent years due to their practical importance. This review will focus on describing the developments in the synthesis of optically active chrysanthemic acid ...
L. Bets, Z. Ribkovskaia, L. Vlad, S. Pogrebnoi, F. Galin, F. Macaev   +5 more
doaj  

Intramolecular annulations of donor–acceptor cyclopropanes [PDF]

, 2010
Terry P. Lebold, Michael A. Kerr
openalex   +1 more source

Efficient Synthesis of Cyclopropane-Fused Heterocycles with Bromoethylsulfonium Salt [PDF]

, 2013
Aggarwal, Artamonov, Basavaiah, Boger, Bornholdt, Catalan-Munoz, Chaplinski, de Carne-Carnavalet, Donohoe, Eckert, Feng, Fritz, Fritz, Fritz, Galeazzi, Gensini, Gomi, Gosselck, Gosselck, Greene, Hanessian, Hansch, Huang, Iwabuchi, Jeffery, Kamimura, Kasai, Kim, Kim, Kokotos, Krieter, Krow, Kulinkovich, Lin, Maeda, Mao, McGarrigle, McGarrigle, Meldrum, Miller, Namba, Nelson, Njoroge, Norris, Nunez, Ohno, Renslo, Sabbatini, Sasaki, Sattigeri, Schoepp, Shi, Takahashi, Tverezovsky, Unthank, Unthank, Van Zijl, Wiberg, Wirth, Xie, Xie, Xu, Yamanaka, Yar, Yar, Yar, Zhang   +66 more
core   +3 more sources

Observation of unusual outer-sphere mechanism using simple alkenes as nucleophiles in allylation chemistry

Nature Communications
Transition-metal catalyzed allylic substitution reactions of alkenes are among the most efficient methods for synthesizing diene compounds, driven by the inherent preference for an inner-sphere mechanism.
Yaxin Zeng, Han Gao, Zhong-Tao Jiang, Yulei Zhu, Jinqi Chen, Han Zhang, Gang Lu, Ying Xia   +7 more
doaj   +1 more source

Epinephrine-Cyclopropane Effects on Purkinje Fibers [PDF]

, 1969
Larry D. Davis, John V. Temte, Q. R. Murphy   +2 more
openalex   +1 more source

Synthesis and Structure of Titanium Imido Complexes With Bi‐ and Tridentate PN and PNP Ligands

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 1, January 6, 2026.
The synthesis of PN and PNP supported titanium imido complexes is presented with a variety of alkyl and aryl imido donors on the titanium center, giving access to new potential precatalysts in hydroamination catalysis. We report the synthesis of alkyl and aryl imido titanium(IV) complexes supported by bi‐ or tridentate PNMes and PNP ligands (PNMes = (2‐
Philipp Boos, Daniel Leitner, Viktoria Rehbein, Johann A. Hlina, Stephan Hohloch   +4 more
wiley   +1 more source

CYCLOPROPANE ANAESTHESIA [PDF]

BMJ, 1934
openaire   +2 more sources

A Cardiff apparatus for the supply of a non‐explosive mixture of cyclopropane, oxygen and nitrogen [PDF]

, 1962
E.K. Hillard
openalex   +1 more source

Ringspannungs‐vermittelte Aktivierung von Pyridinen durch einen gesättigten BSi2‐Ring

Angewandte Chemie, Volume 138, Issue 1, 2 January 2026.
Wir berichten über ein stark gespanntes Boratadisiliran mit dem bisher nicht zugänglichen anionischen BSi2‐Ringmotiv. Die Spaltung der S–Si‐Bindung während der Reaktionen mit Pyridinderivate aktiviert diese auf drei verschiedene Arten: (1) Bei Pyridin selbst erfolgt eine selektive ortho‐CH‐Aktivierung und ein gleichzeitiger Wasserstofftransfer zu einem
Nasrina Parvin, Ankur, Philipp Willmes, Bernd Morgenstern, Cem B. Yildiz, David Scheschkewitz   +5 more
wiley   +1 more source