الفهرس 
Chemical properties of hydantoinsOnly 14 pages are availabe for public view
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Abstract
SUMMARY OF THE ORIGINAL WQRK The present work deals with the preparation and reactions of some 2- thio- and 2,4-dithiohydantoins and their derivatives with different substrates at different reaction conditions. Ontreatment5-benzylidene-2-thiohydantoin (LV,) and/or 5,s-dimethyl- 2,4-dithiohydantoin (XIX) with formaldhyde and morpholine i n ethyl alcohol at room temperature it afforded 5-benzylidene-3-morpholinomethyl-2-thiohydantoin (LXIIId) and/or 5,5-dimethyl-3-morpholinomethy1-2,4-dithiohydantoin (CXXV), respectively. When 5-aryl idem-3-shsti tuted-2-thiohydantoins (LXIII,-d) and/or 5,5- dimethyl-3-morpholinomethyl-2,4-dithiohydanton (CXXV) were treated with (2,3,4,6-tetra-0-acetyl-a-D-glucopyranosyl) bromide in the presence of aqueous potassium hydroxide and acetone at room temperature they yield 5-’ ary1 idene-3-substi tuted-2-(2-, 3-, 4- , d-tetra-0-acetyl-13-D-thioglucopyranosyl) hydantoins (CXXVI,_d) and/or 5,5-dimethyl-3-morphol inomethyl-2-(2-, 3-,4-,6--tetra-0-acetyl-I3-D-thioglucopyramsy1)-4-thichydantoin (CXXVII) , respectively. ’AcO @ OAC Similarly, 5-arylidene-3-substituted-2-thiohydantoins (LXIII,-f) and/or 5,5-dimethy1-3-morpholinomethy1-2,4-dithiohydantoin (CXXV) were reacted with (2,3,4,6-tetra-0-acetyl-a-D-galactopyranosyl) bromide i n the presence of aqueous potassium hydroxide and acetone a t room temperature t o give 5-aryl idene-3-suhst i tuted-2-(2-, 3- ,4-, 6’-tetra-0-acetyl-13-D-thiogalactopyranosyl) hydantoins (CXXVIII,-f) and/or 5,5-dimethyl-3-morpholinomethyl- 2-( 2-, 3-, 4-, 6--tetra-0-acety 1-13-0- thioga 1actopyranosyl)-4-thiohydantoi n(CXXIX), respectively. d OAc Moreover, the reactionof 5-arylidene-3-substituted-2-thiohydantoins
(LXIIIabde ) and/or 5,5-dimethyl-3-morpholinomethyl-2,4-dithiohydantoin Ill (CXXV) with (2,3,4-tri-0-acetyl-a-D-xylopyranosyl) bromide i n the presence of aqueous potassium hydroxide and acetone at room temperature furnished 5-aryl idene-3-substi tuted-2-(2-, 3- ,6-tri-0-acetyl-B-D-thioxylopyranosyl )hydantoin (CXXX, e) and/or 5,5-dimethyl-3-morpholinornethyl-2-(2-,3-,4-- Ill tri-0-acetyli3-D-thioxylcpyranosyl )-bthiohydantoin (CX%XI) , respectively.