3 research outputs found
Mild, efficient and economical oxidative deprotection of allyl aryl ethers
No full text328-333An efficient, economical
procedure for the cleavage of allyl aryl ethers using a catalytic amount of
iodine in dimethyl sulphoxide gives corresponding alcohols or phenols in high
yields under mild condition. The reaction can be performed in air without loss
of variety of oxidisable fuctional groups. Allyl ether of phenols is
selectively deprotected in preference to alcohols. The reaction is highly
regioselective and chemoselective
Copper (II) chloride: A regioselective catalyst for oxidative aromatization of pyrazoline, isoxazoline and 3-methyl flavanones
No full text1091-1097A new protocol has
been reported in which a series of pyrazoline, isoxazoline and 3-methyl
flavanone has been conveniently aromatized by using CuCl2.2H2O
in DMSO within a short reaction time in excellent yields. The attraction of
this new protocol is regioselective aromatization of substrate 3i-j and <b style="mso-bidi-font-weight:
normal">5a-e which has been carried out to afford the aromatized product
with O-allyl group intact in excellent yield
