L 636499 → L 640035
Reaction equation
[CH:1]1[C:11]2[CH:10]=[CH:9][C:8]3[CH:12]=[CH:13][CH:14]=[CH:15][C:7]=3[S:6](=[O:17])(=[O:16])[C:5]=2[CH:4]=[C:3]([C:18](O)=[O:19])[CH:2]=1.B#B>O1CCCC1.O>[OH:19][CH2:18][C:3]1[CH:2]=[CH:1][C:11]2[CH:10]=[CH:9][C:8]3[CH:12]=[CH:13][CH:14]=[CH:15][C:7]=3[S:6](=[O:17])(=[O:16])[C:5]=2[CH:4]=1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
Mix 2.8 gm. of dibenzo[b,f]thiepin-3-carboxylic acid-5,5-dioxide, 50 ml. of tetrahydrofuran, and 30 ml. of 1 N diborane in tetrahydrofuran. Stir at room temperature for 1 hour. Dilute the reaction mixture with water, and extract into ether. Evaporate the ether extract to dryness. Stir the residue in ether, and filter to obtain the title product (m.p., 156°-158° C.).