Sulfuration of 9,9′-bibenzonorbornenylidenes by elemental sulfur: exclusive episulfide formation with retention of the configuration of alkenes

Autor:	Juzo Nakayama, Yoshiaki Sugihara, Koichi Noda
Rok vydání:	2000
Předmět:	chemistry.chemical_compound law Chemistry Yield (chemistry) Organic Chemistry Drug Discovery Organic chemistry chemistry.chemical_element Biochemistry Walden inversion Episulfide Sulfur law.invention
Zdroj:	Tetrahedron Letters. 41:8913-8916
ISSN:	0040-4039
DOI:	10.1016/s0040-4039(00)01605-1
Popis:	Sulfuration of syn-bibenzonorbornenylidene (5a) by elemental sulfur in refluxing o-dichlorobenzene furnished the episulfide (6a) exclusively in 83% yield with retention of the configuration of 5a, while that of anti-9,9′-bibenzonorbornenylidene (5b) under the same conditions resulted in the exclusive formation of the episulfide (6c) in 72% yield also with retention of the configuration of 5b. Non-stereoselective sulfuration of 5a and 5b by S2Cl2 is also described.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4e274b1c02bd3e948e21eae5cc74c701 https://doi.org/10.1016/s0040-4039(00)01605-1 Zobrazit plný text záznamu Full Text from ScienceDirect