title: Microwave-assisted synthesis of cyclopentanones using the relevant phosphorus ylides.
abstract: A one-pot synthesis of cyclopentanone derivatives from phosphorus ylide under lab-type microwave assisted methodology was described. The phosphorus ylides were obtained via the reaction of activated acetylenic compounds, ethyl 4-chloroacetoacetate and triphenylphosphine. The structure of phosphorus ylides was assigned by ¹H, ¹³C and ³¹PNMR. The phosphorus ylides as precursor were crystallized as two enantiomers (R,R) and (S,S) and one of the phosphorus ylide structures was confirmed by single X-ray crystallography.
authors.affiliation: Department of Chemistry, Faculty of Science, Gonbad Kavous University, P.O. Box 163, Gonbad, Iran. f_rostami_ch@yahoo.com
authors.forename: Faramarz
authors.initials: F
authors.lastname: Rostami-Charati
authors.forename: Zinatossadat
authors.initials: Z
authors.lastname: Hossaini
authors.forename: Majid
authors.initials: M
authors.lastname: Moradian
authors.forename: Ali
authors.initials: A
authors.lastname: Jafari
authors.forename: Abodolreza
authors.initials: A
authors.lastname: Yazdani
mesh_terms: D000090:Acetoacetates / Q000737:chemistry; D020650:Combinatorial Chemistry Techniques / Q000379:methods*; D018360:Crystallography, X-Ray; D003517:Cyclopentanes / Q000138:chemical synthesis* / Q000737:chemistry; D008872:Microwaves; D008958:Models, Molecular; D009943:Organophosphorus Compounds / Q000737:chemistry*
chemical_list: D000090:Acetoacetates; D003517:Cyclopentanes; D009943:Organophosphorus Compounds; C007201:cyclopentanone; C061896:triphenylphosphine; C111982:ethyl 4-chloro-3-oxobutanoate