Synthetic Pages - an Interactive Database of Chemical Procedures

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Intermolecular alkyl radical addition to a vinyl sulfone; n-Hexyl phenylsulfone
Jonathan Wilden (15th Aug 2001)

Difluorination of alpha hydroxy ketones; 5-tert butoxy 2,2-difluoro-cyclopent-3-enol
lisa frost (16th Aug 2001)

Sulfonylhydrazides via substitution of sulfonyl chlorides using hydrazine hydrate; 2-nitrobenzenesulfonylhydrazide (NBSH)
lisa frost (15th Aug 2001)

Pechmann condensation of ethyl acetoacetate with 3-methylcatechol; 4, 7-dimethyl-8-hydroxycoumarin
Jonathan Wilden (15th Aug 2001)

Ortho Fries rearrangement of 3-methylcatechol diacetate; 2, 3-dihydroxy-4-methylacetophenone
Jonathan Wilden (15th Aug 2001)

Reaction Scheme

Hydrogenation of a coumarin to a chroman-2-one; 8-Methoxy-4, 7-dimethylchroman-2-one
Jonathan Wilden (15th Aug 2001)

Bromination of an alpha, beta unsaturated ester to give a gamma bromo unsaturated ester; Methyl 4-bromo-3-methyl-but-2-enoate
Jonathan Wilden (15th Aug 2001)

Bromination of an Electron Deficient Double Bond; Alpha-bromo enamide
Mala Mistry (15th Aug 2001)

Preparation of imidazolidinones via cyclisation of ephedrine and urea; (4R, 5S)-1,5-dimethyl-4-phenyl imidazolidinone
Mala Mistry (17th Aug 2001)

Reaction Scheme

Formation of allenes from propargyl alcohols via a Mitsunobu displacement; Trimethylsilylallene
Lisa Frost (13th Aug 2001)