80044-10-6Relevant articles and documents
Interrupted CuAAC-Thiolation for the Construction of 1,2,3-Triazole-Fused Eight-Membered Heterocycles from O-/N-Propargyl derived Benzyl Thiosulfonates with Organic Azides
Jannapu Reddy, Raju,Waheed, Md.,Haritha Kumari, Arram,Rama Krishna, Gamidi
supporting information, p. 319 - 325 (2021/12/02)
A copper(I)-catalyzed interrupted click-sulfenylation of O-/N-propargyl benzyl thiosulfonates with organic azides has been disclosed. The unified CuAAC-thiolation provides a wide range of triazole-fused eight-membered heterocycles in good to high (51–94%) yields under mild reaction conditions. Moreover, a three-component reaction is also achieved involving O-/N-propargyl benzyl thiosulfonates, benzyl bromide, and sodium azide to deliver fused-triazoles in 61–74% yields. From a synthetic point of view, the present protocol has been demonstrated at gram-scale reactions. A plausible mechanism is also proposed based on experimental results and control experiments. (Figure presented.).
Halohydrin dehalogenase-catalysed transformations of epifluorohydrin
Majeri? Elenkov, Maja,?i?ak, Mirjana,Smolko, Ana,Kne?evi?, Anamarija
supporting information, p. 406 - 408 (2017/12/28)
Biocatalytic ring-opening of epifluorohydrin has been performed by using halohydrin dehalogenase. The enzyme from Mycobacterium sp. GP1 (HheB2) catalysed reaction with high regioselectivity and low enantioselectivity in the presence of different nucleophi
The effect of glycidyl azide polymer on the stability and explosive properties of different interesting nitramines
Hussein, Ahmed K.,Elbeih, Ahmed,Zeman, Svatopluk
, p. 17272 - 17278 (2018/05/26)
Preparation of glycidyl azide polymer (GAP) and its influence on the stability and explosive properties of polymer bonded explosives (PBXs) based on several cyclic nitramines, namely β-1,3,5,7-tetranitro-1,3,5,7-tetrazocane (β-HMX), 1,3,5-trinitro-1,3,5-triazinane (RDX), ?-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (?-CL-20) and cis-1,3,4,6-tetranitrooctahydroimidazo-[4,5-d]imidazole (BCHMX) are discussed. Impact and friction sensitivity were determined. Combustion heat and detonation velocity of the studied samples were measured. The detonation parameters were obtained by the EXPLO 5 thermodynamic code. The compatibility between the energetic polymeric matrix and the studied nitramines was discussed following a vacuum stability test. The relationship between performance and sensitivity was studied in comparison with literature HTPB compositions. The results showed that the GAP matrix increased both the detonation velocities of its PBXs by more than 500 m s-1 and the heat of explosion by nearly 1.13-1.16 times in comparison to PBXs based on HTPB for each individual explosive. The compatibility of BCHMX to the GAP matrix seems to be better than that of CL-20/GAP.