S. J. Halkes - Concepedia

Author

S. J. Halkes

Philips (Netherlands)

Also Known As

S. J. HALKES, S. J. Halkes, S.J. Halkes, Sebastian Halkes, Sebastian J. Halkes

Publications

178

Citations

H-Index

Concepts

All Affiliations

Philips (Netherlands)Solvay (Netherlands)Instytut Farmaceutyczny

About

S. J. Halkes is an author at Philips (Netherlands) specializing in pharmacology, natural sciences, and bioorganic chemistry.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Natural Sciences	6	6	76
2	Biochemistry	5	5	66
3	Medicine	4	4	55
4	Biomolecular Engineering	3	3	35
5	Engineering	1	1	10

S. J. Halkes

Publications

117

Citations

H-Index

Page 1

	Year	Citations
Sterols. 38. Synthesis of 1,2.beta.-methylene-17.alpha.-acetoxy-9.beta.,10.alpha.-pregnanes, a class of potent progestational agents S. J. Halkes, J. A. J. DEN HARTOG, L. Morsink, Journal of Medicinal Chemistry Pharmaceutical ScienceHormonal ContraceptiveAltmetric Attention ScoreGynecologyPharmacotherapy	1972	19
Investigations on sterols. XXXV: Synthesis of 25‐hydroxycholecalciferol (Short communication) S. J. Halkes, N. P. van Vliet Recueil des Travaux Chimiques des Pays-Bas	1969	16
An improved synthesis of 1α-hydroxy Vitamin D3 Wim Nerinckx, Pierre J. De Clercq, C. Couwenhoven, Tetrahedron PharmacologyPharmaceutical ChemistrySynthetic ChemistryImproved SynthesisNatural Product Synthesis	1991	15
Investigations on sterols XXVI: Synthesis and properties of 6‐substituted 9β,10α‐steroids P. Westerhof, J. A. J. DEN HARTOG, S. J. Halkes Recueil des Travaux Chimiques des Pays-Bas Bioorganic ChemistryOrganic ChemistryMedicinal ChemistryDiversity Oriented SynthesisSteroid Metabolism	1965	14
Investigations on sterols XXIV: Synthesis of some 6‐dehydro‐8α, 10α‐steroid hormone analogues and conversion of 8β, 10α‐ into 8α, 10α‐steroids R. van Moorselaar, S. J. Halkes, E. Havinga Recueil des Travaux Chimiques des Pays-Bas Bioorganic ChemistryOxysterolBiochemistrySterols XxivMedicine	1965	12
Synthesis and in vitro evaluation of side chain-unsaturated analogs of 24a,24b-dihomo-1,25-dihydroxycholecalciferol Michał Chodyński, Wanda Wojciechowska, S. J. Halkes, Steroids Bioorganic ChemistryBiochemistrySide Chain-unsaturated AnalogsNatural SciencesSynthetic Chemistry	1997	11
Investigations on sterols XXXIII: Synthesis of 18‐alkyl‐9β,10α‐pregnane derivatives R. van Moorselaar, S. J. Halkes Recueil des Travaux Chimiques des Pays-Bas Several 18‐Alkyl‐9β,10α‐pregnanesMedicinal ChemistryHormonal ContraceptiveBioorganic ChemistryDerivatives	1969	10
Investigations on sterols XXVII: Synthesis of some stereoisomeric steroids and determination of the additional chemical shifts of the 18‐ and 19‐methyl protons S. J. Halkes, E. Havinga Recueil des Travaux Chimiques des Pays-Bas Additional Chemical ShiftsSteroid MetabolismBioorganic ChemistryBiochemistryEndocrine Research	1965	10
Citramalic Acid As Chiral Synthon. Synthesis of Chiral Aliphatic Sulfones Andrzej Kutner, Michał Chodyński, S. J. Halkes Synthetic Communications EngineeringQuaternary Chiral CenterAbstract Citramalic AcidOrganic ChemistryStereoselective Synthesis	1996	10

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