An article Magnesium Halide-Catalyzed Synthesis of Oxaspiro[2.5]octenes from a Methylenecyclopropane and Acyl Cyanoalkenes WOS:000664252100009 published article about MGI2-MEDIATED RING EXPANSIONS; OXA-MICHAEL REACTION; CYCLOADDITION; LEWIS; ALKYLIDENECYCLOPROPANES; 2-METHYLENEAZIRIDINES; HETEROCYCLES; ANNULATION in [Suzuki, Itaru; Shibata, Ikuya] Osaka Univ, Res Ctr Environm Preservat, 2-4 Yamadaoka, Suita, Osaka 5650871, Japan; [Ogura, Kazuki; Shimazu, Jun-ya; Shibata, Ikuya] Osaka Univ, Dept Appl Chem, Grad Sch Engn, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan in 2021, Cited 33. COA of Formula: C7H5NO3. The Name is 3-Nitrobenzaldehyde. Through research, I have a further understanding and discovery of 99-61-6
MgX2-catalyzed annulation of methylenecyclopropanes with acyl cyanoalkenes was accomplished to give oxaspiro[2.5]octenes in excellent yields. The reaction proceeded through a rare intramolecular oxa-Michael addition of Mg enolate. The oxaspiro ring was transformed into 4H-pyran at a higher temperature in the presence of MgX2.
About 3-Nitrobenzaldehyde, If you have any questions, you can contact Suzuki, I; Ogura, K; Shimazu, J; Shibata, I or concate me.. COA of Formula: C7H5NO3
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem