共 8 条
[2]
CAMPS R, 1902, ARCH PHARM, V240, P349
[3]
COPENHAVER JW, 1949, ACETYLENE CARBON MON, P60
[4]
ELDERFIELD RC, 1950, HETEROCYCL COMPOUNDS, V1, P455
[5]
KARRER P, 1950, ORGANIC CHEM, P818
[7]
SCHMIDT J, 1902, BER, V35, P1577
[8]
1950, Patent No. 2524479