The　Hantzsch　1,4-dihydropyridines　were　found　to　be　transforming　to　the　2,3-dihydropyrroles　by　photo　rearrangement　with　air　under　irradiation　of　LED　light　(410　nm)　with　high　diastereoselectivity　(dr　＞　20:1).　This　reaction　includes　tandem　photo　oxidation/rearrangement.　The　2,3-dihydropyrroles　were　obtained　in　moderate　yields　with　successfully　one-pot　process　starting　from　aldehydes,　ammonium　acetate　and　ethyl　acetoacetate.　(C)　2017　Published　by　Elsevier　Ltd.