53867-57-5Relevant articles and documents
Ruthenium(ii)-catalysed direct synthesis of ketazines using secondary alcohols
Kishore, Jugal,Thiyagarajan, Subramanian,Gunanathan, Chidambaram
supporting information, p. 4542 - 4545 (2019/04/26)
Direct one-pot synthesis of ketazines from secondary alcohols and hydrazine hydrate catalyzed by a ruthenium pincer complex is reported, which proceeds through O-H bond activation of secondary alcohols via amine-amide metal-ligand cooperation in the catalyst. Remarkably, liberated molecular hydrogen and water are the only byproducts.
Carbenes in Constrained Systems, 3. Solid-State Photolysis of Cycloheptane- and Cyclooctanespirodiazirine within Cyclodextrins and Zeolites
Kupfer, Rene,Brinker, Udo H.
, p. 1721 - 1726 (2007/10/03)
Inclusion complexes of cycloheptanespirodiazirine (1) and cyclooctanespirodiazirine (8) in α-, β-, and γ-cyclodextrin, and faujasite type zeolites (NaX and NaY), have been prepared.The guest-host complexes (1- and 8CD and 1- and 8zeolite) were irradiated with UV light in the solid state and the reaction products were separated from the host and analyzed.Product ratios from photolysis of complexes were compared with those obtained from pure compounds and in solution.Cycloheptanespirodiazirine (1) gives cycloheptene (2), bicycloheptane (3), and methylenecyclohexane (4).Photolysis products from cyclooctanespirodiazirine (8) are cyclooctene (9), bicyclooctane (10), and bicyclooctane (11). 10 results from a 1,5-C-H insertion reaction of the carbene derived from 8.As the cavity size of the cyclodextrins becomes larger, the formation of 10 seems to increase.In β-cyclodextrin and in non-polar solvents substantial amounts of azine were found.In addition to hydrocarbons, photolyses in zeolites afforded alcohols and small amounts of the corresponding ketones. - Keywords: Diazirines / Zeolites / Cyclodextrins / Photochemistry / Carbenes
