Results 51 to 60 of about 11,171 (165)

Stereoselective Transformation of Cyclodecene-1,4-dione Systems, Derived from Steroids, to the Corresponding spiro-γ-lactones. A Semiempirical MO Study

open access: yesMolecules, 1999
The thermal and acid-catalyzed intramolecular rearrangement of the (Z)- and (E)-cyclodecene-1,4-dione compounds deriving from steroids, 2a,b and 3a,b, respectively, proceeds stereoselectively to give the corresponding configurationally different spiro ...
Milan Dabovich   +6 more
doaj   +1 more source

Photochemical Rearrangement of 8- methyl Spiro [2.5] oct-7-en-4-one to 4-methyl Spiro [2.5] oct-4-en-6-one [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1989
Irradiation of &methyl spiro [2.5] oct-7-en-4-one through its singlet excited state resulted in the formation of 4-methyl spirO [2.5] oct-4-en -6-one. We have used the cyclopropyl moiety in the molecule as a probe to study the operating mechanism in the
doaj  

Synthesis of spiro[isoindole-1,5’-isoxazolidin]-3(2H)-ones as potential inhibitors of the MDM2-p53 interaction

open access: yesBeilstein Journal of Organic Chemistry, 2016
A series of spiro[isoindole-1,5-isoxazolidin]-3(2H)-ones has been synthesized by 1,3-dipolar cycloaddition of N-benzylnitrone with isoindolin-3-methylene-1-ones.
Salvatore V. Giofrè   +10 more
doaj   +1 more source

Synthesis, toxicological and in silico evaluation of novel spiro pyrimidines against Culex pipiens L. referring to chitinase enzyme

open access: yesScientific Reports
The exponential development of resistance to conventional chemical insecticides adds another important motive for the creation of novel insecticidal active agents.
Eslam M. Abbass   +4 more
doaj   +1 more source

STUDIES ON SPIROHETEROCYCLES : SYNTHESIS OF NEW SPIRO 4- THIAZOLIDINONES AS POSSIBLE BIODYNAMICS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1992
Spiro-4- thiazolidinones have been synthesized by the cyclocondensation of phthalazinyl hydrazones with cyclic ketones and substituted mercapto acetic acids. Compounds were screened for their antibacterial, antifungal and antihypertensive activity.
doaj  

spiro-Compounds. Part I.

open access: yes, 1931
spiro-Compounds. Part I.
openaire   +1 more source

Spiro‑Linked Double Tetraphenylethenes: Solid-State Emission and Circularly Polarized Luminescence Imaging. [PDF]

open access: yesAngew Chem Int Ed Engl
Páez JL   +7 more
europepmc   +1 more source

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