These monoprotected diamines are very useful as bifunctional scaffolds for acylation, sulfonylation, alkylation, and arylation reactions. We emphasize chiral Boc-diamines and unusual spirocyclic and bicyclic heterocycles.

Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS009975 CASRN:    MFCD #:   MFCD11226963		198	tert-Butyl 2,6-diazaspiro[3.3]heptane-2-carboxylate (Purity >95%) At least 0.32 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     895 1495 2895
Catalog #:   FS010154 CASRN:    MFCD #:   MFCD04973491		242	tert-Butyl 4-(oxiran-2-ylmethyl)piperazine-1-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         1990 3990
Catalog #:   FS011280 CASRN:   625471-18-3 MFCD #:   MFCD03094718		200	(S)3-Amino-1-Boc-piperidine (Purity >98%) At least 15 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       195 495 1550
Catalog #:   FS011279 CASRN:   140645-23-4 MFCD #:   MFCD03839876		214	(R)3-Aminomethyl-piperidine-1-carboxylic acid tert-butyl ester (Purity >98%) At least 25 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       395 995 3495
Catalog #:   FS011299 CASRN:   99724-21-7 MFCD #:   MFCD06658350		186	Azetidin-2-ylmethyl-carbamic acid tert-butyl ester (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       870 3745
Catalog #:   FS000063 CASRN:   112275-50-0 MFCD #:   MFCD00276987		200	1-Boc-1,4-diazepane (Purity >95%) At least 1 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       95
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS008743 CASRN:   186550-13-0 MFCD #:   MFCD01861220		186	1-Boc-3-aminopyrrolidine (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g           515
Catalog #:   FS007100 CASRN:   392331-89-4 MFCD #:   MFCD04114980		214	1-Boc-3-methylaminopiperidine (Purity >98%) At least 1 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       195 395 995
Catalog #:   FS011282 CASRN:   216854-23-8 MFCD #:   MFCD03093383		200	S-3-(Boc-amino)piperidine (Purity >98%) At least 1 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g   75 95 195 795 1995
Catalog #:   FS011283 CASRN:   309956-78-3 MFCD #:		200	R-3-(Boc-amino)piperidine (Purity >95%) At least 20 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g   75 95 195 495 995
Catalog #:   FS009400 CASRN:   937014-80-7 MFCD #:   MFCD12024910		405	4-(3-Bromo-benzenesulfonyl)-piperazine-1-carboxylic acid tert-butyl ester (Purity >95%) At least 1 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g 95 195 395 895
Catalog #:   FS010203 CASRN:   896464-16-7 MFCD #:   MFCD17012882		316	tert-Butyl 2,7-diazaspiro[3.5]nonane-7-carboxylate oxalate (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g 95 295 495 1195 1950 4995
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS009191 CASRN:   336191-17-4 MFCD #:   MFCD06739056		240	tert-Butyl 2,8-diazaspiro[4.5]decane-2-carboxylate (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1995
Catalog #:   FS007562 CASRN:   1010422-66-8 MFCD #:   MFCD11110320		264	4-(2,2-Difluoro-ethylamino)-piperidine-1-carboxylic acid tert-butyl ester (Purity >95%) At least 1 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     495 995 2495 4995
Catalog #:   FS011292 CASRN:   163765-44-4 MFCD #:   MFCD02683205		200	(R)-3-Methyl-1-Boc-piperazine (Purity >98%) At least 20 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     95 175 415 810
Catalog #:   FS011281 CASRN:   188111-79-7 MFCD #:   MFCD03094717		200	(R)3-Amino-1-Boc-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       295 595 1650
Catalog #:   FS011278 CASRN:   140645-24-5 MFCD #:   MFCD03839877		214	(S)3-Aminomethyl-piperidine-1-carboxylic acid tert-butyl ester (Purity >98%) At least 1 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       395 950 3450
Catalog #:   FS040040 CASRN:   1202780-68-4 MFCD #:   MFCD13194707		389	3-(3-Benzyloxycarbonylamino-azetidi ne-1-carbonyl)-azetidine-1-carboxyl ic acid tert-butyl ester (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g 495 995 1995
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS008009 CASRN:   171049-35-7 MFCD #:   MFCD02179169		268	[4,4']Bipiperidinyl-1-carboxylic acid tert-butyl ester (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g           4995
Catalog #:   FS011276 CASRN:   259537-92-3 MFCD #:   MFCD03419256		200	(R)-1-Boc-2-(aminomethyl)pyrrolidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         695 1695
Catalog #:   FS011277 CASRN:   119020-01-8 MFCD #:		200	(S)-1-Boc-2-(aminomethyl)pyrrolidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       295 595 1495
Catalog #:   FS007992 CASRN:   169447-86-3 MFCD #:   MFCD03787923		276	(S)-N1-Boc-2-benzylpiperazine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         1995 4995
Catalog #:   FS007990 CASRN:   674792-05-3 MFCD #:   MFCD03787918		228	(S)-N1-Boc-2-isopropylpiperazine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       495 1995 4995
Catalog #:   FS011297 CASRN:   193269-78-2 MFCD #:   MFCD01861753		172	1-Boc-3-(amino)azetidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       395 995 2495
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS007940 CASRN:   325775-44-8 MFCD #:   MFCD01861762		186	1-Boc-3-(Aminomethyl)-azetidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         1695 4495
Catalog #:   FS007380 CASRN:   1002360-09-9 MFCD #:   MFCD09878775		334	(S)-1-Boc-3-(Cbz-amino)-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       495 2295 3495
Catalog #:   FS007381 CASRN:   879275-35-1 MFCD #:   MFCD11111942		348	(R)-1-Boc-3-(Cbz-amino-methyl)-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       895 2995 5995
Catalog #:   FS007382 CASRN:   140645-87-0 MFCD #:   MFCD11111943		348	(S)-1-Boc-3-(Cbz-amino-methyl)-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       995 2995 5995
Catalog #:   FS007764 CASRN:   147081-49-0 MFCD #:		186	(R)-1-Boc-3-aminopyrrolidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         395 995
Catalog #:   FS007897 CASRN:   147081-44-5 MFCD #:   MFCD03419271		186	(S)-1-Boc-3-aminopyrrolidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g           995
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS007377 CASRN:   1002359-90-1 MFCD #:   MFCD11110302		257	(R)-1-Boc-3-Ureidomethyl-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       895 2495 4995
Catalog #:   FS011271 CASRN:   171110-72-8 MFCD #:   MFCD03787927		281	(S,S)-1-Boc-4-aminoproline methyl ester hydrochloride (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     145 295 495 1295
Catalog #:   FS007762 CASRN:   122536-77-0 MFCD #:   MFCD00143191		186	(R)-3-(Boc-amino)pyrrolidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g           995
Catalog #:   FS007763 CASRN:   122536-76-9 MFCD #:   MFCD00143194		186	(S)-3-(Boc-amino)pyrrolidine (Purity >98%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         295 995
Catalog #:   FS005107 CASRN:   180975-51-3 MFCD #:   MFCD11045908		212	5-Boc-Hexahydro-pyrrolo[3,4-b]pyrrole (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     395 695 1995 4995
Catalog #:   FS010206 CASRN:    MFCD #:   MFCD11865052		316.36	2-(tert-Butoxycarbonyl)-2,7-diazaspiro[3.5]nonane oxalate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       1350 1950 4995
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS007996 CASRN:   99724-19-3 MFCD #:   MFCD00059040		186	3-(tert-Butoxycarbonylamino)pyrrolidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         295 855
Catalog #:   FS009184 CASRN:   198989-07-0 MFCD #:   MFCD06411671		198	tert-Butyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g 90 195 495 995 2995 4995
Catalog #:   FS009187 CASRN:   885270-86-0 MFCD #:   MFCD08234738		212	tert-Butyl 2,6-diazaspiro[3.4]octane-6-carboxylate (Purity >95%)	Special Oder*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 2495
Catalog #:   FS010205 CASRN:    MFCD #:   MFCD17012884		316.36	tert-Butyl 2,6-diazaspiro[3.5] nonane-2-carboxylate oxalate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       1350 1950 4995
Catalog #:   FS009183 CASRN:   885272-17-3 MFCD #:   MFCD08234981		226	tert-Butyl 2,6-diazaspiro[3.5]nonane-6-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1995
Catalog #:   FS010207 CASRN:    MFCD #:   MFCD17012885		316.36	tert-Butyl 2,6-diazaspiro[3.5]nonane-6-carboxylate oxalate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       1195 1800 4995
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS009190 CASRN:   960294-16-0 MFCD #:   MFCD10700118		240	tert-Butyl 2,6-diazaspiro[4.5]decane-6-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1995
Catalog #:   FS009192 CASRN:   236406-55-6 MFCD #:   MFCD09834803		226	tert-Butyl 2,7-diazaspiro[3.5]nonane-2-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1695 4995
Catalog #:   FS009188 CASRN:   885268-42-8 MFCD #:   MFCD08234437		240	tert-Butyl 2,7-diazaspiro[4.5]decane-2-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1995
Catalog #:   FS009189 CASRN:   954240-14-3 MFCD #:   MFCD09701315		254	tert-Butyl 2,8-diazaspiro[5.5]undecane-2-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1995
Catalog #:   FS009186 CASRN:   173405-78-2 MFCD #:   MFCD05861627		254	tert-Butyl 3,9-diazaspiro[5.5]undecane-3-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 1995
Catalog #:   FS009194 CASRN:   1147422-00-1 MFCD #:   MFCD11877862		226	tert-Butyl octahydro-1H-pyrrolo[3,2-c]pyridine-1-carboxylate (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g     995 2495
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS007316 CASRN:   1002359-87-6 MFCD #:   MFCD11111931		254	R-3-(Cyclobutylamino)-1-boc-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       995 2495 4995
Catalog #:   FS007325 CASRN:   1002359-86-5 MFCD #:   MFCD11111931		254	R-3-(Cyclobutylamino)-1-boc-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       995 2495 4995
Catalog #:   FS007371 CASRN:   1000576-83-9 MFCD #:		228	R-3-Dimethylamino-N-Boc-piperidine (Purity >95%) At least 4.7 grams in stock	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       995 1995 2995
Catalog #:   FS007373 CASRN:   254905-64-1 MFCD #:		242	(S)-3-(Dimethylaminomethyl)-N-Boc-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       895 2495 4995
Catalog #:   FS040248 CASRN:    MFCD #:   MFCD09851565		371	[4-(1H-Indol-5-ylcarbamoyl)-cyclohe xylmethyl]-carbamic acid tert-butyl ester (Purity >95%)	In Stock: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g 495
Catalog #:   FS011291 CASRN:   147081-29-6 MFCD #:   MFCD02683204		200	(S)-3-Methyl-1-Boc-piperazine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g         395 495
Catalog Number	Structure	FW	Chemical Name and % Purity	Please scroll down for more structures
Catalog #:   FS007378 CASRN:   1002359-89-8 MFCD #:   MFCD11110303		257	(S)-1-Boc-3-Ureidomethyl-piperidine (Purity >95%)	Special Order*: Price in US$ 10 mg 100 mg 250 mg 1g 5g 20g 50g       995 2495 4995

*Note concerning Special Order chemicals: these are made to order with a typical lead time of 6 weeks. Minimum order sizes apply (usually 1 gram). Prices are listed in the catalog for available quantities only.