摘要:
Terminal alkynes RC=CH [R = PhCO, PhCH2OCO, (CH3)(2)CHCH2OCO. Et2NCO. (EtO)(2)P(O), PhCH2, H2C=CH-CH2, and Ph-CH(OH)-] may be prepared in satisfactory yield in a one-pot process by reaction in THF at -78 degrees C of the titled reagent with electrophiles followed by acidic workup with dilute HCl. (C) 1997 Elsevier Science Ltd.