Houben-Weyl 
Houben-Weyl Methods of Organic Chemistry Vol. E 23k, 4th Edition Supplement [PDF ebook] 
Indexes to the Complete E-Series: Substance Index, Cyclic Compounds VII, Tricyclic Compounds I

Houben-Weyl is the acclaimed reference series for preparative methods in organic chemistry, in which all methods are organized accor ding to the class of compound or functional group to be synthesized. The Houben-Weyl volumes contain 146 000 product-specific experi mental procedures, 580 000 structures, and 700 000 references. The preparative significance of the methods for all classes of compou nds is critically evaluated. The series includes data from as far back as the early 1800s to 2003.

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