An improved procedure for the preparation of aryl- and hetarylacetylenes
A number of relatively volatile acetylenes RC ≡ CH (R = aryl or hetaryl) have been prepared with high yields by heating a mixture of the corresponding alcohols RC ≡ CC(CH3)2OH and paraffin oil with small amounts of powdered potassium hydroxide in vacuum. The alcohols were obtained by Pd/Cu-catalyzed cross coupling of aryl or hetaryl halides RX (X = Br, in one case I) with the commercially available HC ≡ CC(CH3)2OH.
Mal'Kina,Brandsma,Vasilevsky,Trofimov
p. 589 - 590
(2007/10/03)
EFFECT OF HALOGEN ON THE REACTION OF 1-METHYLPYRROLE WITH N-HALOIMIDES.
In the reaction of N-haloimides with 1-methylpirrole, ?-substitution (addition-elimination) predominates over halogenation, when the halogen is chlorine.
Rosa, Michael De,Nieto, Gustavo Cabrera
p. 2405 - 2408
(2007/10/02)
PYRROLE STUDIES XXVII. UTILISATION OF 1-METHYL-2-PYRROLYL LITHIUM IN THE SYNTHESIS OF 1-METHYL-2-SUBSTITUTED PYRROLES
-
Brittain, Judith M.,Jones, R. Alan,Arques, Jose Sepulveda,Saliente, Teresa Aznar
p. 231 - 248
(2007/10/02)
More Articles about upstream products of 34671-29-9