Photohydration reaction of 1-(1-naphthyl)buta-1,3-diynes
作者:Sang Chul Shim、Tae Suk Lee
DOI:10.1039/p29900001739
日期:——
Irradiation of 1-(1-naphthyl)buta-1,3-diynes (1)–(3) in aqueous sulphuric acid yields both type-A (4), (6), (8) and type-B (5), (7), (9) hydration products. The type A/B product ratio was 0.8–1 : 1 in neutral conditions, while the ratio increases as the acidity of the medium increases. The fluorescence of compounds (1) and (3) decreased but that of compound (2) was invariant with increasing acidity
LEE, TAE SUK;LEE, SANG JIN;SHIM, SANG CHUL, J. ORG. CHEM., 55,(1990) N5, C. 4544-4549
作者:LEE, TAE SUK、LEE, SANG JIN、SHIM, SANG CHUL
DOI:——
日期:——
SHIM, SANG CHUL;LEE, TAE SUK, J. CHEM. SOC. PERKIN TRANS. PT. 2,(1990) N1, C. 1739-1743
作者:SHIM, SANG CHUL、LEE, TAE SUK
DOI:——
日期:——
Synthesis of 1,3-Diynes via Cadiot–Chodkiewicz Coupling of Volatile, in Situ Generated Bromoalkynes
作者:Phil C. Knutson、Haleigh E. Fredericks、Eric M. Ferreira
DOI:10.1021/acs.orglett.8b02975
日期:2018.11.2
A convenient Cadiot–Chodkiewicz protocol that facilitates the use of low molecular weight alkyne coupling partners is described. The method entails an in situ elimination from a dibromoolefin precursor and immediate subjection to copper-catalyzed conditions, circumventing the hazards of volatile brominated alkynes. The scope of this method is described, and the internal 1,3-diyne products are preliminarily