{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["16(44)"],"submitter":["Wang J"],"pubmed_abstract":["Although sugars and sugar derivatives-molecules critical to the origins of life-have been identified in carbonaceous meteorites with total abundances typically higher than that of amino acids, their underlying formation mechanisms in interstellar environments remain poorly understood. This study reports the first formation of 1,2-propanediol (CH<sub>3</sub>CH(OH)CH<sub>2</sub>OH) and 1,2-ethenediol (HOCHCHOH) in low-temperature model interstellar ices composed of methane (CH<sub>4</sub>) and ethylene glycol (HOCH<sub>2</sub>CH<sub>2</sub>OH). 1,2-Propanediol forms <i>via</i> the barrierless radical-radical recombination of the methyl (ĊH<sub>3</sub>) with the 1,2-dihydroxyethyl (HOĊHCH<sub>2</sub>OH), while 1,2-ethenediol is produced through the decomposition of ethylene glycol. Utilizing "],"journal":["Chemical science"],"pagination":["21111-21120"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12520177"],"repository":["biostudies-literature"],"pubmed_title":["Interstellar formation of 1,2-propanediol (CH&lt;sub&gt;3&lt;/sub&gt;CH(OH)CH&lt;sub&gt;2&lt;/sub&gt;OH) and 1,2-ethenediol (HOCHCHOH)-key precursors to sugars and sugar derivatives."],"pmcid":["PMC12520177"],"pubmed_authors":["Eckhardt AK","Kaiser RI","Zhang C","Wang J"],"additional_accession":[]},"is_claimable":false,"name":"Interstellar formation of 1,2-propanediol (CH&lt;sub&gt;3&lt;/sub&gt;CH(OH)CH&lt;sub&gt;2&lt;/sub&gt;OH) and 1,2-ethenediol (HOCHCHOH)-key precursors to sugars and sugar derivatives.","description":"Although sugars and sugar derivatives-molecules critical to the origins of life-have been identified in carbonaceous meteorites with total abundances typically higher than that of amino acids, their underlying formation mechanisms in interstellar environments remain poorly understood. This study reports the first formation of 1,2-propanediol (CH<sub>3</sub>CH(OH)CH<sub>2</sub>OH) and 1,2-ethenediol (HOCHCHOH) in low-temperature model interstellar ices composed of methane (CH<sub>4</sub>) and ethylene glycol (HOCH<sub>2</sub>CH<sub>2</sub>OH). 1,2-Propanediol forms <i>via</i> the barrierless radical-radical recombination of the methyl (ĊH<sub>3</sub>) with the 1,2-dihydroxyethyl (HOĊHCH<sub>2</sub>OH), while 1,2-ethenediol is produced through the decomposition of ethylene glycol. Utilizing ","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Nov","modification":"2026-06-05T13:10:57.958Z","creation":"2026-05-17T03:12:34.683Z"},"accession":"S-EPMC12520177","cross_references":{"pubmed":["41098495"],"doi":["10.1039/d5sc05315c"]}}