Results 21 to 30 of about 14,856 (220)
3-(2,6-Dioxopiperidin-3-yl)-3-azabicyclo[3.2.0]heptane-2,4-dione
Acta Crystallographica Section E, 2009 The title molecule, C11H12N2O4, consists of a 3-azabicyclo[3.2.0]heptane group containing a nearly planar cyclobutane ring (r.m.s. deviation of fitted atoms is 0.0609 Å), fused to a pyrrolidine ring, bonded to a 2,6-dioxopiperidine ring at the
Jerry P. Jasinski +4 more
doaj +1 more source
Molecules, 2020 The halogen-bond (X-bond) donors 1,3- and 1,4-diiodotetrafluorobenzene (1,3-di-I-tFb and 1,4-di-I-tFb, respectively) form cocrystals with trans-1,2-bis(2-pyridyl)ethylene (2,2′-bpe) assembled by N···I X-bonds.
Jay Quentin +2 more
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Stereocontrolled Synthesis and Functionalization of Cyclobutanes and Cyclobutanones
Molecules, 2013 In the last decade a certain number of new cyclobutane and cyclobutanone synthesis and functionalization protocols have been published. Organo- and biocatalyzed eco-friendly approaches to cyclobutane-containing molecules have been developed with ...
Francesco Secci +2 more
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Acta Crystallographica Section E: Crystallographic Communications, 2022 The formation and crystal structure of a zigzag molecular network held together by I...N halogen bonds is reported. In particular, the halogen-bond donor is 1,2-diiodoperchlorobenzene (1,2-C6I2Cl4) while the acceptor is a head-to-tail photoproduct ...
Taylor J. Dunning +2 more
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DNA photolyases of Chrysodeixis chalcites nucleopolyhedrovirus are targeted to the nucleus and interact with chromosomes and mitotic spindle structures [PDF]
, 2010 Cyclobutane pyrimidine dimer (CPD) photolyases convert UV-induced CPDs in DNA into monomers using visible light as the energy source. Two phr genes encoding class II CPD photolyases PHR1 and PHR2 have been identified in Chrysodeixis chalcites ...
Xu, F. (Fang) +12 more
core +1 more source
Synthesis and structure of 2,4,6-tricyclobutyl-1,3,5-trioxane
Acta Crystallographica Section E: Crystallographic Communications, 2019 The synthesis and structure of 2,4,6,-tricyclobutyl-1,3,5-trioxane, C15H24O3 1, is described. It was formed in 39% yield during the work-up of the Swern oxidation of cyclobutylmethanol and may serve as a stable precursor of the cyclobutane carbaldehyde ...
Sergey V. Shorunov +3 more
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Molecules, 2021 The formation of a pair of extended networks sustained by halogen bonds based upon two regioisomers of a photoproduct, namely rctt-1,3-bis(4-pyridyl)-2,4-bis(phenyl)cyclobutane (ht-PP) and rctt-1,2-bis(4-pyridyl)-3,4-bis(phenyl)cyclobutane (hh-PP), that ...
Taylor J. Dunning +3 more
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Angewandte Chemie, EarlyView.Catalytic strain‐release ring opening and functionalizations of 1‐azabicyclo[1.1.0]butanes (ABBs) represent a promising strategy for accessing diverse azetidine products. These transformations proceed via polar pathways, radical pathways, and hybrid mechanisms that combine both.
James Shao‐Jiun Yang +1 more
wiley +2 more sources
Microflow photochemistry: UVC-induced [2 + 2]-photoadditions to furanone in a microcapillary reactor
Beilstein Journal of Organic Chemistry, 2013 [2 + 2]-Cycloadditions of cyclopentene and 2,3-dimethylbut-2-ene to furanone were investigated under continuous-flow conditions. Irradiations were conducted in a FEP-microcapillary module which was placed in a Rayonet chamber photoreactor equipped with ...
Sylvestre Bachollet +5 more
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Angewandte Chemie, EarlyView.A photocontrolled RAFT strategy enables the alternating copolymerization of 1,3‐disubstituted bicyclo[1.1.0]butanes with electron‐deficient comonomers, affording well‐defined copolymers bearing strained cyclobutane backbones. A high degree of alternation, tunable molecular weights, and excellent end‐group fidelity are achieved through a CTA‐mediated ...
Xia Hu +4 more
wiley +2 more sources