to increase stereoselectivity. -(
New, Scalable Route for the Synthesis of a trans-Fused Hexahydro-1H-phenanthren-2-one from a Conjugated Tetrahydro-3H-phenanthren-2-one
β Scribed by Morgan, Bradley P.; Trilles, Richard V.; Woodworth, Graeme F.
- Book ID
- 127023658
- Publisher
- Taylor and Francis Group
- Year
- 2003
- Tongue
- English
- Weight
- 165 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0039-7911
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## Abstract The title novel fused tricyclic phosphoroheterocycle, C~19~H~20~N~3~O~2~PS, was synthesized in an excellent yield of 88.5% via the reacβ tion of 1β(2βbromoethyl)β2,3βdihydroβ3βpropylβ1,3,2βbenzodiazaphosphorinβ4(1__H__)βone 2βoxide with phenyl isothiocyanate, which contains the proximat
Different thiaxolvlthiocoumarins were prepared by the reaction of (thiaxol-2-ylthio) acetic acid hydra&d& with-2hydroxybenxaldehydes, followed by cyclixation of the formed N-benzylidene derivatives in presence of PPA. A variety of coumarins 1,2 ,thiaxoles3'4 and thiazolylcoumarins 5-9 derivatives h