- Mechanism and stereochemistry of domino reaction of 2,3-dichloroprop-1-ene with diphenyl dichalcogenides in the system hydrazine hydrate - KOH
-
A new scheme of the domino reactions of diphenyl dichalcogenides with 2,3-dichloroprop-1-ene in the system hydrazine hydrate - KOH was suggested, which included nucleophilic substitution of the allylic chlorine atom in dichloropropene, dehydrochlorination of the product obtained with the formation of an allene derivative, addition of a nucleophile to the allene system, allene-acetylene rearrangement, addition of a nucleophile to the triple bond with the formation of a Z-adduct, isomerization of a 2,3-dichalcogenide product to Z-1,2-dichalcogenylprop-1-enes, and isomerization of Z-adducts to E-isomers. The most plausible mechanisms of individual steps, involving carbanions stabilized by the α-chalcogen atom, were considered.
- Levanova,Vakhrina,Grabel'Nykh,Rozentsveig,Russavskaya,Albanov,Korchevin
-
p. 1722 - 1727
(2015/05/20)
-
- Experimental and Theoretical Study of the Radical-Chain Addition of Benzenethiol to Heterosubstituted Allenes
-
The radical-chain addition of benzenethiol to phenylallene (PHA), methoxyallene (MEOA), carbomethoxyallene (CBA), cyanoallene (CNA), chloroallene (ClA), and (phenylthio)- and allene (PHSA and MPHSA) has been studied.In all cases, exc
- Pasto, Daniel J.,L'Hermine, Gael
-
p. 685 - 694
(2007/10/02)
-
- Free Radical Addition of Thiophenol to 3-Substituted 1-Alkyne with or without Migration of the Substituents
-
Thiophenol reacts with 3-phenylthio- and 3-bromo-1-alkyne in the presence of radical initiator to give 1,2-bis(phenylthio)-1-alkene and 2-bromo-1-phenylthio-1-alkene.
- Miyake, Hideyoshi,Yamamura, Kimiaki
-
p. 3752 - 3754
(2007/10/02)
-