78142-70-8

Upstream product

• 4509-91-5 5-bromo-1-phenyl-1-pentanone 
• 5414-21-1 5-bromopentan-1-nitrile 
• 1011-62-7 5-hydroxy-1-phenylpentan-1-one 
• 66860-64-8 5-iodo-1-phenyl-1-pentanone 
• 16836-95-6 silver(I) 4-methylbenzenesulfonate 

Downstream Products

• 79913-37-4 3-phenyl-4,5,6,7-tetrahydro-1,2-oxazepine 
• 3240-29-7 1-Phenylpent-4-en-1-one 
• 98-86-2 acetophenone 

Relevant academic research and scientific papers

Methylenephenylsulfone appended acetals and ketals: New class of carbonyl protective groups cleavable by DBU

3-phenylsulfonyl 1,2 propane diol, readily obtainable by dihydroxylation of commercially available allylphenylsulfone, acts as an efficient and new protection reagent for both aldehydes and ketones. This protective group is elegantly removed by use of 1,8-diazabicyclo[5.4.0]-7-undecene (DBU), under nonaqueous conditions.

THE PHOTOCHEMICAL BEHAVIOR OF CYCLIC IMINO ETHERS. THE N-O BOND FISSION AND SYN-ANTI ISOMERIZATION IN THE C=N-O CHROMOPHORE

Six-, seven-, and eight-membered cylic imino ethers (3,4, and 5) were synthesized and their photoreactions were investigated to compare with those of isoxazoline derivatives.The derivatives of 3 upon irradiation afforded ring-cleaved products, whereas 4 and 5 were found to be inert to irradiation