308280-56-0

Upstream product

• 69340-57-4 5-Amidino-2,5,8-trimethylnona-2,7-diene 
• 69340-56-3 5-Cyano-2,5,8-trimethylnona-2,7-diene 

Downstream Products

• 81310-22-7 2,2,4a,7,7-Pentamethyl-1,2,3,4,4a,5,6,7-octahydro-[1,8]naphthyridine; compound with (2R,5R)-3,3-dimethyl-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 
• 80403-49-2 (3R,5S)-3-Hydroxy-4,4-dimethyl-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid; compound with 2,2,4a,7,7-pentamethyl-1,2,3,4,4a,5,6,7-octahydro-[1,8]naphthyridine 
• 91841-42-8 (3S,4R)-4-tert-bytyldimethylsilyloxymethyl-3-phenoxyacetamido-2-oxo-1-sulfoazetidinone 3,3,6,9,9-pentamethyl-2,10-diazabicyclo<4.4.0>-1-decene salt 
• 91814-70-9 (3R,4S)-4-tert-bytyldimethylsilyloxymethyl-3-phenoxyacetamido-2-oxo-1-sulfoazetidinone 3,3,6,9,9-pentamethyl-2,10-diazabicyclo<4.4.0>-1-decene salt 
• 91841-49-5 (3S,4R)-4-acetoxymethyl-3-phenoxyacetamido-2-oxo-1-sulfoazetidine 3,3,6,9,9-pentamethyl-2,10-diazabicyclo<4.4.0>-1-decene salt 
• 91814-76-5 (3R,4S)-4-acetoxymethyl-3-phenoxyacetamido-2-oxo-1-sulfoazetidine 3,3,6,9,9-pentamethyl-2,10-diazabicyclo<4.4.0>-1-decene salt 
• 91841-44-0 (3S,4R)-4-hydroxymethyl-3-phenoxyacetamido-2-oxo-1-sulfoazetidine 3,3,6,9,9-pentamethyl-2,10-diazabicyclo<4.4.0>-1-decene salt 
• 91814-72-1 (3R,4S)-4-hydroxymethyl-3-phenoxyacetamido-2-oxo-1-sulfoazetidine 3,3,6,9,9-pentamethyl-2,10-diazabicyclo<4.4.0>-1-decene salt 

Relevant academic research and scientific papers

A comparative solid state 13C NMR and thermal study of CO 2 capture by amidines PMDBD and DBN

The present work shows study of the CO2 capture by amidines DBN and PMDBD using 13C solid-state NMR and thermal techniques. The solid state 13C NMR analyses demonstrate the formation of a single PMDBD-CO2 product which was assigned to stable bicarbonate. In the case of DBN, it is shown that two DBN-CO2 products are formed, which are suggested to be stable bicarbonate and unstable carbamate. The role of water in the DBN-CO2 capture as well as the stability of the products to environmental moisture was also investigated. The results suggest that the carbamate formation is favored in dry DBN, but in the presence of water it decompose to form bicarbonate. Thermal analysis shows a good gravimetric CO 2 absorption of DBN. Release of CO2 was found to be almost quantitative from the PMDBDH+ bicarbonate about 110 °C.

Proton transfer reactions between 4-nitrophenylphenylcyanomethanes and cyclic nitrogen bases in acetonitrile solvent

3,3,6,9,9-Pentamethyl-2,10-diazabicyclodec-1-ene has been synthesized and its proton transfer reactions, together with those of the bases 2,2,6,6-tetramethylpiperidine and 1,2,2,6,6-pentamethylpiperidine, have been studied with the carbon acids 4-nitrophenylphenylcyanomethane and 2-methyl-4-nitrophenylphenylcyanomethane.Equilibrium constants, rate constants, primary deuterium isotope effects, and activation parameters are reported for the reactions in acetonitrile solvent.Values of the pKa in acetonitrile have been measured for the conjugate acid of each base and the Broensted β value of 0.56 in acetonitrile has been determined for the proton transfer from 4-nitrophenylphenylcyanomethane.