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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 21, Number 8
BKCSDE 21(8)
August 20, 2000

Title	Preparation of 2,9-Dimethyl-6H, 13H-dibenzo[d,i][l ,6]dithiecin-7, 14dlone by Sodium Azide-Promoted Cyclodimeri-zation of o-Acylthiophenacyl Chloride
Author	Sung Woo You, IWn Kyoung Kim, Kee-Jung Lee*
Keywords
Abstract	The reaction of o-acylthiophenacyl chloride 5a with onc equivalent ofsodium azide in aqueous acetone at-10~ -5℃ gave 2,9-dimethyl-6H,I3H-dibenzo[d,i][1,6]dithiecin-7,14-dione 7(10%),acyclic dimer 8(64%),and tri-mer 9 (8%). Dimer 8 and trimer 9 were converted readily to 7 under the similar conditions at room temperature in yields of 72% and 53%,respectivel. Also, one pot synthesis of 7 (64%, 45%) from the reaction of 5a or 5b with two equivalents of sodium azide at room temperature was very successful.
Page	797 - 800
Full Text	PDF

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