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AI Summary of Peer-Reviewed Research

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New sulfanyl indeno triazinones were synthesized and some cyclized further

A laboratory workbench displaying various pieces of glass chemistry equipment including a large round-bottom flask, smaller glass vials, amber-colored bottles, and crystalline or chemical compounds, arranged on a wooden table with laboratory workspace visible in the background.
Research area:Organic chemistryOrganic ChemistryOrganic and Inorganic Chemical Reactions

What the study found

Previously undescribed 3-alkenyl(propargyl)sulfanyl-indeno[1,2-e][1,2,4]triazin-9-ones were synthesized in a one-pot three-component reaction. The authors also report that the cyclization direction was established by single-crystal X-ray diffraction (XRD) using 3-allylsulfanylindeno[1,2-e][1,2,4]triazin-9-one as an example.

Why the authors say this matters

The authors state that the synthesis was developed for the first time, and they present the XRD result as establishing the cyclization direction for this reaction. They also note that subsequent heterocyclization was achieved in some cases.

What the researchers tested

The researchers examined the reaction of ninhydrin and thiosemicarbazide in the presence of a base and an alkyl halide. They used this one-pot three-component approach to prepare 3-alkenyl(propargyl)sulfanyl-indeno[1,2-e][1,2,4]triazin-9-ones, and then tested further heterocyclization conditions.

What worked and what didn't

The synthesis of the new sulfanyl-indeno triazin-9-ones was successful. Subsequent heterocyclization was reported for allyl sulfide under bromine, for methallyl sulfide under iodine and bromine, and for butenyl sulfide under iodine. The abstract does not describe cases that failed.

What to keep in mind

The available summary does not provide yields, reaction times, or detailed experimental conditions. It also does not describe limitations beyond the specific substrates and reagents mentioned.

Key points

  • A one-pot three-component synthesis produced previously undescribed 3-alkenyl(propargyl)sulfanyl-indeno[1,2-e][1,2,4]triazin-9-ones.
  • Single-crystal XRD was used to establish the cyclization direction for 3-allylsulfanylindeno[1,2-e][1,2,4]triazin-9-one.
  • Further heterocyclization occurred for allyl sulfide with bromine, methallyl sulfide with iodine and bromine, and butenyl sulfide with iodine.
  • The abstract describes the synthesis as developed for the first time.
  • No failed reactions, yields, or detailed limitations are given in the abstract.

Disclosure

Research title:
New sulfanyl indeno triazinones were synthesized and some cyclized further
Publication date:
2026-03-11
DOI:
10.1134/s1070363225606908
OpenAlex record:
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AI provenance: AI provenance information is not available for this post.

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