Reactions of organo-metal compounds O 0350Tributyl (3,3,3-trifluoro-1-propynyl)stannane as an Efficient Reagent for the Preparation of Various Trifluoromethylated Heterocyclic Compounds. -Title compound (III), synthesized from propene (I) and chlorobutylstannane (II) is used in 1,3-dipolar cycloadditions with diazomethane (IV), phenylazide (XI) and acetonitrile oxide (VIII) to afford the tributylstannyl substituted heterocycles (V), (XII) and (IX)/(X) in good yields, respectively. These heterocyclic compounds are proved to be useful building blocks for the regioselective introduction of a functional group such as an aryl group or iodine. -(HANAMOTO*, T.; HAKOSHIMA, Y.; EGASHIRA, M.; Tetrahedron Lett. 45 (2004) 41, 7573-7576; Dep. Chem. Appl. Chem., Fac. Sci. Eng., Saga Univ., Honjo, Saga 840, Japan; Eng.) -M. Paetzel 02-055
zole. -A new method for the preparation of target compound (VI) is presented. Its further electrophilic substitution reactions with a variety of aldehydes, ketones, isocyanate and S-phenyl benzenethiosulfate is studied. Attempts to react (VI) with Me2N-CHO and methyl cyanoacetate fail. -(HANAMOTO*, T.; EGASHIRA, M.; ISHIZUKA, K.; FURUNO, H.; INANAGA, J.; Tetrahedron 62 (2006) 26, 6332-6338; Dep. Chem. Appl. Chem., Fac. Sci. Eng., Saga Univ., Honjo, Saga 840, Japan; Eng.) -Y. Steudel 41-107
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.