Decarbonylation des dithiocarbonates: une voie d'access generale aux complexes binucleaires bis-μ-(S-alkyl)-hexacarbonyledifer
作者:Armelle Legadec、Rene Dabard、Boguslaw Misterkiewicz、Arlette Le Rouzic、Henri Patin
DOI:10.1016/0022-328x(87)87010-9
日期:1987.6
with [Fe2(CO)9] to afford the bis-μ-(S-alkyl)hexacarbonyldiiron coordination compounds: I (R1 = R2), II (R1R2 = bridging hydrocarbon chain) and III (R1 ≠ R2) after a double fragmentation pattern accompanied by loss of carbonyl groups. This unexpected reactivity of ligands IV offers a general route to binuclear iron compounds such as I and II. Some reaction intermediates [μ(RS)-μ-(RSCO)-Fe2(CO)6] (V)
Reformatsky regants are shown to undergo facile CC bond formation on trithiocarbonates, xanthates, thione and dithioesters, through carbophilic additional yielding products formed by elimination of either sulphur or alkylthio group.
Synthesis of Substituted Benzo[<i>b</i>]thiophenes via Base-Promoted Domino Condensation–Intramolecular C–S Bond Formation
作者:Yogendra Kumar、Hiriyakkanavar Ila
DOI:10.1021/acs.orglett.1c00085
日期:2021.3.5
A novel synthesis of 2,3-substituted benzothiophenes is reported, involving a tandem base-mediated condensation of o-iodoarylacetonitriles/acetates/ketones with (hetero)aryldithioesters and an intramolecular C–S bond formation. The reaction affords diversely substituted benzothiophenes and heterofused thiophenes in excellent yields.
Synthesis of compounds of the triallylmethane series based on reactions of triallylborane and derivatives of carbonic acid
作者:Yu. N. Bubnov、A. Yu. Zykov、I. V. Zhun、A. V. Ignatenko
DOI:10.1007/bf01431125
日期:1996.11
An original method was developed for the synthesis of functional derivatives of triallylmethane (CH2=CH-CH2)3C-X (X = OH, NH2, or SCOPh) based on reactions of triallylborane with the corresponding derivatives of carbonicacid (ethylene carbonate, diethylcyanamide, and 0,S-dimethyidithio carbonate) at 110–120 °C.
O,S-Dimethyl Carbonodithioate as a Phosgene Substitute for the Preparation of S-Methyl Alkylcarbamothioates and Dialkylcarbamothioates
作者:Rita Fochi、Iacopo Degani、Claudio Magistris
DOI:10.1055/s-0029-1218117
日期:2009.11
conditions for the synthesis of S-methyl dialkylcarbamothioates involved a one-step procedure in a solvent-free system in the presence of triethyl(methyl)ammonium methyl carbonate as a catalyst; yields of the pure products were 85-98%. A mechanism is proposed for the carbamothioate-formation reaction. O,S-dimethyl carbonodithioate - carbamothioates - carbonylation - isomerization - S,S-dimethyl carbonodithioate