4128. Flash Photoionization Studies with Kinetic. Mass Spectrometry. Sir : We have recently succeeded in extending the tech- nique of flash photolysis to the ...
The enantioselective N-heterocyclic carbene-catalyzed formal [2 + 2] and [2 + 2 + 2] cycloaddition of ketenes and isothiocyanates were developed. Reaction with ...
1 hour ago - A stereoselective sequential [4+2]/[2+2] cycloaddition process involving 2-alkenylindolenines has been developed. This unprecedented protocol allows rapid access to densely functionalized benzo[b]indolizidines containing a fully substitu
5 days ago - Among various benzoindolizidine structures resulting from the position difference of the fused benzene ring, the benzo[b]indolizidine member is ... (3) In addition, Ye and co-workers documented an interesting formal aza-DielsâAlder rea
Fluoranthene 2 and heptacycle 3 are easily accessible from the reaction of diyne 1 and norbornadiene (NBD) in the presence of the rhodium catalyst.
Fiorella Casalboni,1a Quinto G. Mulazzani,*,1a Rosemary L. Cleary,1b and ... School of Chemistry, UniVersity of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
+ /Im In z exp (--5)-5-l dx (A18) n n! To verify equation A17, one may insert into equation 47 the series. -E~(-~). = - (1/4) 1n z4. - 2 (-2)". (A191. "-1 nn! and integrate term by term. THORIUM NITRATE. IV. LEACHIXG WITH HIGHER ALCOHOLS. AND KETONES
Apr 11, 2018 - ... in good yields with excellent diastereoselectivities. This finding demonstrated the unique synthetic utility of the 2-alkenylindolenine species in ...
thic and menthiafolic acid are d i d . Penstemon ambiguus Torr. (Scrophulariaceae) is a unique Penstemon species of the southwestern United States. It is one of ...
