624-67-9Relevant articles and documents
Klaboe,Kramer
, p. 947 (1977)
Ethynylhydroxycarbene (H-CC-C¨-OH)
Bernhardt, Bastian,Ruth, Marcel,Eckhardt, André K.,Schreiner, Peter R.
supporting information, p. 3741 - 3746 (2021/04/06)
The species on the C3H2O potential energy surface have long been known to play a vital role in extraterrestrial chemistry. Here we report on the hitherto uncharacterized isomer ethynylhydroxycarbene (H-CC-C¨-OH, 1) generated by high-vacuum flash pyrolysis of ethynylglyoxylic acid ethyl ester and trapped in solid argon matrices at 3 and 20 K. Upon irradiation at 436 nm trans-1 rearranges to its higher lying cis-conformer. Prolonged irradiation leads to the formation of propynal. When the matrix is kept in the dark, 1 reacts within a half-life of ca. 70 h to propynal in a conformer-specific [1,2]H-tunneling process. Our results are fully consistent with computations at the CCSD(T)/cc-pVTZ and the B3LYP/def2-QZVPP levels of theory.
DABCO-bis-CC: An efficient alternative to PCC
Saikia, Bishwajit
, p. 583 - 586 (2018/06/26)
We have developed a new chromium based reagent ‘DABCO?bis-CC’ for the straightforward oxidation of alcohols to corresponding carbonyl compounds with high efficiency. The present results demonstrate a broad range of alcohols including primary, secondary, aliphatic, benzylic and heterocyclic alcohols are tolerated as substrates at room temperature.
Reactivity of indole-3-alkoxides in the absence of acids: Rapid synthesis of homo-bisindolylmethanes
Chinta, Bhavani Shankar,Baire, Beeraiah
, p. 8106 - 8116 (2016/11/22)
An unprecedented behaviour of in situ generated indole-3-alkoxides (MgX or Li) has been reported. Tuning the electronic properties of the alkoxides offered the direct and selective construction of bisindolylmethanes and indole-3-carbinols. This process shows very broad scope and represents the reagent (external) free, greener synthesis of structurally divergent bisindolylmethanes.