74074-09-2

Upstream product

• 3528-17-4 2,3-dihydro-4H-[1]benzothiopyran-4-one 
• 100-52-7 benzaldehyde 
• 78140-85-9 3-hydroxybenzylthiochroman-4-one 

Downstream Products

• 93362-79-9 7,7a,8,9,10,11-Hexahydro-7-phenyl-11a-piperidino-6H,11aH<1>benzothiopyrano<4,3-b>chromen 
• 116924-21-1 4-phenyl-(5H)-(1-benzthiopyrano)-(4,3-d)-1,2,3,4-tetrahydropyrimidine-2-thione 
• 137985-57-0 1-Phenyl-1H,10H-2,9-dithia-4-aza-phenanthren-3-ylamine 
• 87604-66-8 (6aR,7S)-7-Phenyl-6a,7-dihydro-6H-5,8-dithia-13-aza-benzo[5,6]cyclohepta[1,2-a]naphthalene 
• 78140-88-2 3-benzylthiochroman-4-one 
• 76238-58-9 3-benzylidene-1-thiochromanol 
• 142929-05-3 6,6a,7,8-Tetrahydro-7-phenylbenzo<1>benzothiopyrano<4,3-e><1,4>diazepine 
• 115091-84-4 <1>-benzothiopyrano<4,3-b>pyridine 
• 115091-75-3 2-amino-4-phenyl<1>benzothio-4H,5H-pyrano<4,3-b>pyran-3-carbonitrile 
• 135521-98-1 2-amino-4-phenyl-4H,5H-<1>thiobenzopyrano<4,3-b>pyran-3-carboxamide 
• 23029-89-2 1-Oxo-3-[1-phenyl-meth-(Z)-ylidene]-1λ⁴-thiochroman-4-one 
• 101001-24-5 3-Benzyliden-2,3-dihydro-4H-1-benzothiopyran-4-on-1,1-dioxid 
• 866037-89-0 1,3,4-triphenylspiropyrazoline-5,3'-thiochroman-4-one 
• 78140-96-2 3-benzyl-Δ³-thiochromene 

Relevant academic research and scientific papers

I2/TBHP mediated diastereoselective synthesis of spiroaziridines

Eventhough spiroheterocycles are considered as emerging drug candidates, synthesis of spiroaziridines has not been well explored so far. Herein, we disclose an efficient I2/TBHP mediated diastereoselective synthesis of N-alkyl spiroaziridines from primary amines and easily accessible α,β-unsaturated ketones. The reaction is also compatible for the synthesis of 2-aroylaziridines.

Green chemistry preparation of MgO nanopowders: efficient catalyst for the synthesis of thiochromeno[4,3-b]pyran and thiopyrano[4,3-b]pyran derivatives

A mild and efficient method for the synthesis of thiochro meno[4,3-b]pyran and thiopyrano[4,3-b]pyran derivatives using MgO nanopowders as a catalyst is described. The MgO nanopowders were prepared via a green biosynthesis method using an extract of Rosma

Reactivity of α-arylidene benzoheteracyclanone dibromides toward azide ion: An effective approach to 3-(α-substituted-benzyl)chromones and -1-thiochromones

Treatment of dibromides of 3-arylidenechromanones and -1-thiochromanones with sodium azide resulted in the formation of 3-(α-azidobenzyl)chromones and -1-thiochromones whereas dibromides having no antiperiplanar vicinal hydrogen in the ring such as flavanone, 1-thioflavanone and benzosuberone derivatives afforded only the parent enones by bromine elimination. Evidence supported the intermediacy of 3-(α-bromobenzyl)chromones and -1-thiochromones in this reaction. These postulated intermediates were prepared in an independent way and transformed into azides in high yield.

Stereospecificity of Introduction of Hydride Ion during Double Bond Reduction of 2-Benzylidene-1-tetralone and Other Related Compounds

Lithium aluminium hydride reduction of the benzylidene derivatives (1a-c) and (5) in refluxing THF is shown to be stereospecific, the saturated alcohol isolated in each case having the trans-stereochemistry.The benzyl ketones (30a, b, d) and (7) on sodium