Major reference works
Ullmann's Encyclopedia of industrial Chemistry - 7th. ed - 2006 - short and concise overview of existing knowledge about compounds, processes a.o.
Organic Syntheses - contains full text of all 77 volumes and 9 collective volumes of this series published by John Wiley & Sons. It will give you experimental details and reaction schemes for the synthesis of many thousand important organic compounds
chemsynthesis more than 40,000 compounds with their synthesis references and physical properties such as melting point, boiling point and density
Organic Chemistry On Line - online textbook covering major aspects of undergraduate organic chemistry
- Structure & Bonding: reviews and exercises covering the basic structural aspects of organic chemistry
- Spectroscopy: tutorials in IR, NMR and Mass spectroscopy, with interactive problems and a "Quiz"
- Stereochemistry: tutorials on all common aspects of stereochemistry
- Functional Group Reactions: reactions, mechanisms and Quizzes