After more than 70 years since their discovery, Criegee intermediates (CIs) are back at the
forefront of modern chemistry of short‐lived reactive intermediates. They play an important …

To date, it remains challenging to selectively migrate a carbonyl oxygen within a given
molecular scaffold, especially to an adjacent carbon. In this work, we describe a simple one …

The chalcone derivatives of 20-oxo-lupanes have been synthesised and screened for some
types of biological activity. Ozonolysis of lupanes afforded 20-oxo-derivatives with the …

To develop new potential agents against Chlamydia trachomatis among oleanane type
triterpenoids the synthesis, spectral and X-ray analysis as well as antimicrobial screening of …

A series of 24-nor-allobetulin derivatives holding 3β-hydroxy-, oxime, methoxyoxime,
lactame and 4-bromobenzylidene substituents have been synthesized and their differences …

1, 3-Butadienes play a key role in modern synthetic chemistry and biochemistry because
they are well-known precursors for the synthesis of retinoids. A new and efficient synthesis of …

New Amino-Derivatives of 24-Nor-Allobetulin | Chemistry of Natural Compounds Skip to
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Abstract The oxidation of 2, 3-seco-24, 28-dinorlupa-4 (23), 20 (29)-diene-2, 17-
dicarbonitrile with ozone in methylene chloride at–40° C afforded a mixture of 4, 20-dioxo-2 …

Sterically shielded 1, 2, 4-trioxolanes prepared by Griesbaum co-ozonolysis have been
utilized as chemical sensors of ferrous iron in several recently described chemical probes of …

Mehr als 70 Jahre nach der Entdeckung sind die “Criegee‐Intermediate”(CIs) wieder an der
Spitze der modernen Chemie kurzlebiger reaktiver Zwischenprodukte angelangt. Sie …