Generation of isoquinolino-o-quinodimethanes from fused 3-sulfolenes
摘要:
Isoquinolino-3-sulfolene 7 has been prepared efficiently from 3,4-epoxysulfolene 8. Deprotonarion-alkylation reactions proceed smoothly but with low regioselectivity to give substituted isoquinolino-3-sulfolenes. The pyrolysis of these fused 3-sulfolenes at various temperatures provides an easy entry to the corresponding isoquinolino-o-quinodimethanes. (C) 1998 Elsevier Science Ltd. All rights reserved.
Generation of isoquinolino-o-quinodimethanes from fused 3-sulfolenes
摘要:
Isoquinolino-3-sulfolene 7 has been prepared efficiently from 3,4-epoxysulfolene 8. Deprotonarion-alkylation reactions proceed smoothly but with low regioselectivity to give substituted isoquinolino-3-sulfolenes. The pyrolysis of these fused 3-sulfolenes at various temperatures provides an easy entry to the corresponding isoquinolino-o-quinodimethanes. (C) 1998 Elsevier Science Ltd. All rights reserved.