Takeshi Kuri Yoshihiko Mizukami Mio Shimogaki Morifumi Fujita
Organic Letters 22(19) 7613-7616 2020年10月 [査読有り]
An oxetane intermediate during a direct aldol reaction was trapped with an internal aryl group to yield trans-tetraline products. The contribution of the oxetane intermediate was confirmed by 18O-isotope labeling experiments.
<p>The substitutions at the 2′- and/or 6′-positions of the quinoline ring of cinchonidine reduce both the intrinsic enantioselectivity and adsorption strength for the enantioselective hydrogenation of α-phenylcinnamic acid over Pd/C.</p>
ACCOUNTS OF CHEMICAL RESEARCH 38(8) 679-686 2005年8月
Cyclohexynes can be generated efficiently from 1-cyclohexenyl-iodonium salts with acetate or other bases via the E2 and El mechanism. The observed regioselectivity of nucleophilic addition to substituted cyclohexynes conforms to the LUMO populatio...
ACCOUNTS OF CHEMICAL RESEARCH 38(8) 679-686 2005年8月
Cyclohexynes can be generated efficiently from 1-cyclohexenyl-iodonium salts with acetate or other bases via the E2 and El mechanism. The observed regioselectivity of nucleophilic addition to substituted cyclohexynes conforms to the LUMO populatio...
JOURNAL OF ORGANIC CHEMISTRY 70(2) 480-488 2005年1月
DIAGRAM
Reactions of cyclohexenyl and cyclopentenyl iodonium salts with cyanide ion in chloroform give cyanide substitution products of allylic and vinylic forms. Deuterium-labeling experiments show that the allylic product is formed via the Micha...
JOURNAL OF ORGANIC CHEMISTRY 70(2) 480-488 2005年1月
DIAGRAM
Reactions of cyclohexenyl and cyclopentenyl iodonium salts with cyanide ion in chloroform give cyanide substitution products of allylic and vinylic forms. Deuterium-labeling experiments show that the allylic product is formed via the Micha...
Alkylidenecyclopropanone sityl acetals are readily available from the reaction of an alkylidenemethyliodonium salt and ketene silyl acetals in the presence of triethylamine. The three different C-C bonds of the cyclopropane ring can be selectively...
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理学研究科