35998-47-1Relevant articles and documents
A facile 1,2-acetoxychlorination reaction of olefins by using the N,N-dimethtylacetamide/hydrogen chloride/m-chloroperbenzoic acid (or oxone) system
Kim, Hyoung Rae,Oh, Hyun Sook,Park, Hyun Ju,Kim, Jae Nyoung,Jeon, Dong Ju,Ryu, Eung K.
, p. 159 - 165 (1998)
Various alkenes underwent 1,2-acetoxychlorination by dimethylacetamide (DMA)/HCl/m-CPBA (or Oxone) system in good yields.
Phase-transfer and other types of catalysis with cyclopropenium ions
Bandar, Jeffrey S.,Tanaset, Anont,Lambert, Tristan H.
supporting information, p. 7365 - 7368 (2015/05/13)
Abstract This work establishes the cyclopropenium ion as a viable platform for efficient phase-transfer catalysis of a diverse range of organic transformations. The amenability of these catalysts to large-scale synthesis and structural modification is demonstrated. Evaluation of the molecular structure of an optimal catalyst reveals some unique structural features of these systems. Finally, a discussion of electronic charge distribution underscores an important consideration for catalyst design. Aromatic ions: Tris(dialkylamino)cyclopropenium ions are shown to be effective carbocationic phase-transfer catalysts for a variety of mainstay transformations. The cyclopropenium platform is shown to be modular and accessible on scale. An X-ray structure and electron-density map revealed some unique features of this architecture (see scheme).
Convenient synthesis of chlorohydrins from epoxides using zinc oxide: Application to 5,6-epoxysitosterol
Moghaddam, Firouz Matloubi,Saeidian, Hamdollah,Mirjafary, Zohreh,Javan, Marjan Jebeli,Farimani, Mehdi Moridi,Seirafi, Marjan
experimental part, p. 157 - 163 (2009/09/30)
Efficient synthesis of protected and unprotected chlorohydrins has been achieved by ring opening of epoxides with acetyl/benzoyl chloride and TMSCl using a catalytic amount of ZnO as a reusable catalyst. The applicability of ZnO is further extended by performing the cleavage of the natural product 5,6-epoxysitosterol with acetyl chloride.